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| Theory Quotes | No. | Quotation | Last Name | First Name |
|---|---|---|---|
| 1 | A little experience often upsets a lot of theory. | Cadman | |
| 2 | Whenever a true theory appears, it will be its own evidence. Its test is that it will explain all phenomena. Now many are thought not only unexplained but unexplainable: as language, sleep, madness, dreams, beasts, sex. | Emerson | Ralph Waldo |
| 3 | A young boy is a theory, an old man is a fact. | Howe | Ed |
| 4 | In scientific work, those who refuse to go beyond fact rarely get as far as fact. | Huxley | Thomas |
| 5 | Science is organized common sense where many a beautiful theory was killed by an ugly fact. | Huxley | Thomas |
| 6 | Conjecture as to things useful, is good; but conjecture as to what it would be useless to know, is very idle. | Johnson | Samuel |
| 7 | In theory there is no difference between theory and practice. In practice there is. | Berra | Yogi |
| 8 | We should be guided by theory, not by numbers. | Deming | Edwards |
| 8 quotations on Theory |



