We humans are the greatest of earth's parasites.

A good teacher must know the rules; a good pupil, the exceptions.

You must learn to talk clearly. The jargon of scientific terminology which rolls off your tongues is mental garbage.

The practice of medicine is a thinker's art the practice of surgery a plumber's.

Diagnosis is not the end, but the beginning of practice.

I find that most men would rather have their bellies opened for five hundred dollars than have a tooth pulled for five.

Research has been called good business, a necessity, a gamble, a game. It is none of these - it's a state of mind.

Facts are not science - as the dictionary is not literature.

Don't despise empiric truth. Lots of things work in practice for which the laboratory has never found proof.