How often have I said to you that when you have eliminated the impossible, whatever remains, however improbable, must be the truth?
There is nothing more deceptive than an obvious fact.
Where there is no imagination there is no horror.
Any truth is better than indefinite doubt.
It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.
I consider that a man’s brain originally is like a little empty attic, and you have to stock it with such furniture as you choose.
When a doctor does go wrong he is the first of criminals. He has nerve and he has knowledge.
Mediocrity knows nothing higher than itself, but talent instantly recognizes genius.
It has long been an axiom of mine that the little things are infinitely the most important.
Violence does, in truth, recoil upon the violent, and the schemer falls into the pit which he digs for another.