To the logician all things should be seen exactly as they are, and to underestimate oneself is as much a departure from truth as to exaggerate one`s own powers.
The Memoirs of Sherlock Holmes by Sir Arthur Conan Doyle
The public, not unnaturally, goes upon the principle that he who would heal others must himself be whole, askance at the curative powers of the man whose own case is beyond the reach of his drugs.
The Memoirs of Sherlock Holmes by Arthur Conan Doyle