Arthur Conan Doyle

“Circumstantial evidence is occasionally very convincing, as when you find a trout in the milk, to quote Thoreau's example.”

“When a doctor does go wrong he is the first of criminals. He has nerve and he has knowledge.”

“It is a capital mistake to theorize before one has data.”

“There is nothing more deceptive than an obvious fact.”

“To the man who loves art for its own sake, it is frequently in its least important and lowliest manifestations that the keenest pleasure is to be derived.”

“I never guess. It is a shocking habit destructive to the logical faculty.”

“Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth.”

“When you have eliminated the impossible, whatever remains, however improbable, must be the truth.”

“How often have I said to you that when you have eliminated the impossible, whatever remains, however improbable, must be the truth?”

“It is an old maxim of mine that when you have excluded the impossible, whatever remains, however improbable, must be the truth.”

“I have frequently gained my first real insight into the character of parents by studying their children.”

“Of all ghosts the ghosts of our old loves are the worst.”

“Where there is no imagination there is no horror.”

“Any truth is better than indefinite doubt.”

“Mediocrity knows nothing higher than itself, but talent instantly recognizes genius.”

“Some facts should be suppressed, or, at least, a just sense of proportion should be observed in treating them.”

“We can't command our love, but we can our actions.”

“Violence does, in truth, recoil upon the violent, and the schemer falls into the pit which he digs for another.”

“There is nothing more unaesthetic than a policeman.”

“His ignorance was as remarkable as his knowledge.”