1. The human species, according to the best theory I can form of it, is composed of two distinct races, the man who borrows, and the man who lends. 

2. In theory, the scheme sounds fine.

3. The biologist advanced a new theory of life.

4. We decided to test the theory experimentally.

5. She supports her theory with copious evidence.

6. This theory makes sense of an otherwise inexplicable phenomenon.

7. Later,findings verified the scientist's theory.

8. Did you ever swallow the conspiracy theory about Kennedy?

9. No serious historian today accepts this theory.

10. It was a theory unsupported by evidence.

11. Some scientists have rejected evolutionary theory.

12. These new facts make the theory improbable.

13. Freudian theory has had a great influence on psychology.

14. The experiment confirmed my theory.

15. In theory, basketball is a non-contact sport.

16. The theory is not yet scientifically established.

17. Einstein's theory marked a new epoch in mathematics.

18. Recent research seems to corroborate his theory.

19. Most of us don't hold with his theory.

20. We found further scientific evidence for this theory.

21. Are you able to verify your account/allegation/report/theory?

22. I subscribe wholeheartedly to this theory.

22. try its best to gather and build good sentences.

23. Huxley was an exponent of Darwin's theory of evolution.

24. The theory is irreconcilable with the facts.

25. Natural selection is a key element of Darwin's theory of evolution.

26. Both quantum mechanics and chaos theory suggest a world constantly in flux.

27. One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.

28. What are the reasons for his rejection of the theory?

29. Radio signals received from the galaxy's centre back up the black hole theory.

30. A scientist must produce evidence in support of a theory.

1. In theory, the scheme sounds fine.

2. We decided to test the theory experimentally.

3. This theory makes sense of an otherwise inexplicable phenomenon.

4. Did you ever swallow the conspiracy theory about Kennedy?

5. No serious historian today accepts this theory.

6. It was a theory unsupported by evidence.

7. Some scientists have rejected evolutionary theory.

8. These new facts make the theory improbable.

9. Freudian theory has had a great influence on psychology.

10. In theory, basketball is a non-contact sport.

11. The theory is not yet scientifically established.

12. Recent research seems to corroborate his theory.

13. We found further scientific evidence for this theory.

14. Are you able to verify your account/allegation/report/theory?

15. I subscribe wholeheartedly to this theory.

16. The theory is irreconcilable with the facts.

17. What are the reasons for his rejection of the theory?

18. Natural selection is a key element of Darwin's theory of evolution.

19. Both quantum mechanics and chaos theory suggest a world constantly in flux.

20. Radio signals received from the galaxy's centre back up the black hole theory.

21. A scientist must produce evidence in support of a theory.

22. It is not a theory that is commonly subscribed to.

22. try its best to gather and build good sentences.

23. Her theory is that disillusionment with employment leads to reappraisal of career goals.

24. The scientist used vivid examples in illustration of his theory.

25. This theory needs to be backed up with solid empirical data/evidence.

26. In theory, the buyer could ask the seller to have a test carried out.

27. The professor told his students to relate theory with practice.

28. The course teaches you the theory but there's no substitute for practical experience.

29. It seems good in theory, but it doesn't work in practice.

30. Dr Subroto questioned the scientific assumption on which the global warming theory is based.

31. It is not a theory that is commonly subscribed to.

32. Her theory is that disillusionment with employment leads to reappraisal of career goals.

33. This theory, though recent, is more than a passing fashion.

34. The scientist used vivid examples in illustration of his theory.

35. This theory needs to be backed up with solid empirical data/evidence.

36. In theory, the buyer could ask the seller to have a test carried out.

37. The professor told his students to relate theory with practice.

38. Your plan sounds fine in theory, but will it work?

39. The course teaches you the theory but there's no substitute for practical experience.

40. The theory is based on a series of wrong assumptions.

41. It seems good in theory, but it doesn't work in practice.

42. The facts added together to build up a theory which was indisputable.

43. Dr Subroto questioned the scientific assumption on which the global warming theory is based.

44. He has a theory that wearing hats makes men go bald.

45. According to the theory of relativity, nothing can travel faster than light.

46. The theory is rendered suspect by its reliance on now discredited sources.

47. Darwin's theory of evolution was a watershed dividing the old way of thinking from the new.

48. Einstein was awarded the Nobel Prize for his contribution to Quantum Theory.

49. This theory seems to have no basis in fact.

50. The facts certainly fit your theory.

51. In theory I'm on call day and night.

52. He enunciated his theory to his colleagues.

52. try its best to collect and build good sentences.

53. There is only fragmentary evidence to support this theory.

54. Current feminist theory consists of several different trends.

55. Needless to say, theory and practice sometimes diverged.

56. The theory has been superseded by more recent research.

57. It is a new theory universally received.

58. It sounds fine in theory, but will it work?

59. Your theory doesn't square with the known facts.

60. Locke originated this theory in the 17th century.

31. According to the theory of relativity, nothing can travel faster than light.

32. The theory is rendered suspect by its reliance on now discredited sources.

33. Darwin's theory of evolution was a watershed dividing the old way of thinking from the new.

34. Einstein was awarded the Nobel Prize for his contribution to Quantum Theory.

35. The theory is of limited usefulness.

36. He presents the theory in a grossly simplified form.

37. The scientist elucidated his theory by three simple demonstrations.

38. The theory of relativity originates with Albert Einstein.

39. This theory can only be expressed in mathematical language.

40. Einstein's theory of relativity is very abstruse.

41. This disproves the theory that children are purely imitative.

42. There is a compelling logic to his main theory.

43. We must integrate theory with practice.

44. The atomic theory is important.

45. The theory is based on the hypothesis that all men are born equal.

46. The theory made the greatest pretence of having a scientific foundation.

47. He cited Australia's sporting success as evidence for his theory.

48. Her notes gave us just the bare skeleton of her theory.

49. Ade couldn't relate the phenomena with any theory he knew.

50. Their course of study includes elementary hygiene and medical theory.

51. This theory was initially received with great scepticism by her fellow scientists.

52. Einstein's theory links energy with mass and velocity of light.

52. try its best to collect and build good sentences.

53. The euro has moved from the realms of theory into reality.

54. That is one reason why we have remained opposed to dogmatism toward the theory of Marxism.

55.

61. The theory bears little relevance to practice.

62. The theory does not apply universally.

63. The latest evidence disproves the theory.

64. The theory is full of holes .

65. This theory is a negation of all traditional beliefs.

66. His theory is deficient in several respects.

67. The results support our original theory.

68. The theory of relativity originates with Albert Einstein.

69. I don't think this theory is testable.

70. This theory is at variance with the known facts.

71. What are you basing this theory on?

72. And that's where the theory falls down.

73. Her theory has been shaken by this new evidence.

74. This theory can only be expressed in mathematical language.

75. His book explains the theory for the lay public.

76. He can document his theory with facts.

77. In theory(), these machines should last for ten years.

78. He passed off this theory as his own.

79. This all goes to prove my theory.

80. Einstein's theory of relativity is very abstruse.

81. Her theory was quoted without acknowledgement.

82. The old theory has been falsified by new evidence.

83. Let's put his theory to the proof.

84. At the moment it is only a theory.

85. Do you know who originated the theory of quantum?

86. There are several difficulties with this theory.

87. He needs to fine down his theory a bit.

88. The optic theory originated with Einstein.

89. This theory fell into disrepute in the fifties.

90. His latest theory has been shot down in flames.

91. He tried to prove his theory to his friends.

92. The expert elaborates his theory from his own reason.

93. He has moved seamlessly from theory to practice.

94. This disproves the theory that children are purely imitative.

95. His theory met with harsh criticism from colleagues.

96. They freeze this theory to death.

97. On what do you base your theory?

98. This theory still needs a little refining.

99. 'Aren't you supposed to be retired?' 'Yes, in theory.'

100. This theory can be confirmed experimentally.

101. She has a theory that drinking milk prevents colds.

102. There is a compelling logic to his main theory.

103. Is there any corroborative evidence for this theory?

104. Boyce has constructed a new theory of management.

105. Scientists have a fairly negative attitude to the theory.

106. He has evolved a new theory.

107. This theory is no longer widely accepted.

108. Historical evidence lends credence to his theory.

109. The theory has now gained scientific respectability.

110. His theory was not new in essence.

111. Darwin's theory rocked the scientific establishment to its foundations.

112. His theory was inapplicable to many underdeveloped economies.

113. This theory is not borne out by the facts.

114. Your theory does not square with the facts.

115. We should confront theory with practice.

116. Let us examine the implications of this theory.

117. We must integrate theory with practice.

118. The new theory has been partially corroborated.

119. This latest evidence lends support to her theory.

120. The statistics offer further support for our theory.

121. This new theory will certainly interest you.

122. He has constructed a new theory.

123. Well that's my theory ruled out of court.

124. Einstein formulated the Theory of Relativity in 1905.

125. The results of the experiment supported her theory.

126. Research studies carried out in Italy confirmed the theory.

127. Do these results validate his theory?

128. Your plan sounds fine in theory.

129. This theory cannot be ruled out altogether.

130. The theory has now been disproved.

131. This new theory passes my comprehension.

132. A recent book has demolished this theory.

133. This theory is now in disrepute.

134. The theory is based on the hypothesis that all men are born equal.

135. However, the converse of this theory may also be true.

136. Students learned the practical application of the theory they had learned in the classroom.

137. They possibly falsified the results to cover up the inadequacies of their theory.

138. Within a year, other researchers had torn the theory to shreds.

139. I have this theory that most people prefer being at work to being at home.

140. We observe a striking shift away from a labor theory among all mainline economists.

141. She cited a number of recent examples to support her theory.

142. A frequent metaphor for one aspect of chaos theory is called the Butterfly Effect - butterflies flapping their wings in the Amazon affect the weather in Chicago.

143. Police are working on the theory that the murderer was known to the family.

144. A number of misconceptions have grown up around this theory.

145. He had completely ignored her remark, preferring his own theory.

146. In Freud's theory, the two areas of sexuality and violence are interconnected.

147. This scientist has put forth a new theory in his research field.

148. A school dental service exists in theory, but in practice, there are few dentists to work in them.

149. She always manages to cut through the complex theory and get at the facts.

150. This research seems to give/lend some validity to the theory that the drug might cause cancer.

151. This new evidence lends plausibility to the theory that she was murdered.

152. Einstein's new theory on optics changed classical scientific ideas about light.

153. Last night a top criminal psychologist cast doubt on the theory.

154. The theory made the greatest pretence of having a scientific foundation.

155. My theory applies to you and by analogy to others like you.

156. His theory is linked closely with the success of our economic reform.

157. In theory, these machines should last for ten years or more.

158. One theory is that the bomb was detonated by remote control.

159. Maths is a mix of abstruse theory and detailed calculations.

160. The scientist cited vivid instances in illustration of his theory.

161. Don't prattle about your theory. You must practise it and prove it.

162. His theory is no longer tenable in light of the recent discoveries.

163. He has this theory that suffering can ennoble a person's character.

164. The theory is that there was a rare conjunction of certain bright planets that created the image of the so-called 'Star of Bethlehem'.

165. He cited Australia's sporting success as evidence for his theory.

166. I understand some of the concepts of the theory but I'm not sure about its details.

167. They've agreed in theory, but now we need to discuss practical matters.

168. The theory of natural selection was first propounded by Charles Darwin.

169. We need to open up a discussion on the basic aspects of the theory.

170. It would be convenient if the facts square with the theory, but they do not.

171. The course commences with a one week introduction to Art Theory.

172. Scientists have advanced a new theory to explain this phenomenon.

173. I find your theory is untenable and it must be rejected.

174. The theory rocked the foundations of social and moral life.

175. His comments are just abstract theory and show little understanding of the realities of the situation.

176. The new theory is a refinement of Corbin's theory of personality development.

177. Many of these youngsters know the job in theory but they're still wet behind the ears when it comes to putting it into practice.

178. It was Ptolemy who propounded the theory that the earth was at the centre of the universe.

179. This concept is at the very core of her theory.

180. Her notes gave us just the bare skeleton of her theory.

181. This theory has been blasted away by the new evidence.

182. Ade couldn't relate the phenomena with any theory he knew.

183. We have a working theory/hypothesis about what caused the crash, which we shall test.

184. In Jungian theory, there are certain archetypes of human personality.

185. You've got nothing on me and you know it. Your theory would never stand up in a court of law.

186. The idea sounds fine in theory, but would it work in practice?

187. According to Marxist theory, a society's superstructure is its legal, social, cultural and political institutions, which are based on its economic systems.

188. These results are in flat contradiction to the theory of relativity.

189. The idea that software is capable of any task is broadly true in theory.

190. We stayed up discussing the finer points of Marxist theory.

191. The book's aim was to make economic theory more digestible.

192. John Bardeen was also co-developer of the theory of superconductivity.

193. His repeated lack of promotion makes nonsense of the theory that if you work hard you'll be successful.

194. This is a practical course, with only a minimal amount of theory.

195. In theory, the journey ought to take three hours, but in practice it usually takes four because of roadworks.

196. The Liverpool team are now putting their theory to the test.

197. The Freudian theory about daughters falling in love with their father has little evidence to support it.

198. The theory was dismissed as a lot of hot air.

199. Zoologist Eugene Morton has propounded a general theory of the vocal sounds that animals make.

200. Detectives are working on a theory that he knew his murderer.

201. It is possible , of course , that the converse of this theory may also be true.

202. We should try to learn economic theory and apply it.

202. try its best to collect and create good sentences.

203. We shall first look briefly at the historical antecedents of this theory.

204. One theory about the moon is that it is a piece broken off the earth.

205. His ideas were of central importance in the development of the theory.

206. Out on the course you must discipline yourself to let go of detailed theory.

207. The theory of electromagnetism swallowed up the theory of light.

208. In my latest book, I wanted to fly the kite for an unfashionable theory.

209. The theory falls flat on its face when put into practice.

210. This new evidence lends support to the theory that she was murdered.

211. The theory does not seem easily applicable in this case.

212. He has a theory about why dogs walk round in circles before going to sleep.

213. The theory assumes the existence of a "meritocracy"?that there is equal opportunity for all.

214. Her notes give us just the bare skeleton of her theory.

215. It seems that the so-called new theory is likely to sink into oblivion.

216. They have learned the lessons of business management theory, and put them into action.

217. He is so obstinate that he still tries to defend his theory,(http:///theory.html) although it has been proved wrong.

218. Einstein's theory links energy with mass and velocity of light.

219. The police have new evidence which lends weight to their theory.

220. The theory assumes that both labour and capital are mobile.

221. The theory has the face validity of being consistent with recent findings.

222. In theory, everyone will have to pay the new tax.

223. He was an unswerving empiri-cist with little time for theory.

224. There was a theory that he wanted to marry her.

225. Of course, the obverse of the theory may also be true.

226. There were some holes in that theory, some unanswered questions.

227. The findings of this research do not comport with accepted theory.

228. In theory, women can still have children at the age of 50.

229. The theory was then tested against the results of the study.

230. The euro has moved from the realms of theory into reality.

231. He has evolved a new theory after many years of research.

232. That is one reason why we have remained opposed to dogmatism toward the theory of Marxism.

233. In his latest book he writes that the theory has since been disproved.