“Human beings can alter their lifes by altering their attitudes of mind.”

“To criticize is to appreciate, to appropriate, to take intellectual possession, to establish in fine a relation with the criticized thing and to make it one's own.”

“Ideas are, in truth, force.”

“Experience is never limited, and it is never complete; it is an immense sensibility, a kind of huge spider-web of the finest silken threads suspended in the chamber of consciousness, and catching every air-borne particle in its tissue.”

“Common sense and a sense of humor are the same thing, moving at different speeds. A sense of humor is just common sense, dancing”

“The art of medicine was to be properly learned only from its practice and its exercise”