As no man can say who it was that first invented the use of clothes and houses against the inclemency of the weather, so also can no investigator point out the origin of Medicine - mysterious as the source of the Nile.

Among the remedies which it has pleased Almighty God to give to man to relieve his sufferings, none is so universal and so efficacious as opium.

Nothing in medicine is so insignificant as to merit attention.

We may ascertain the worth of the human race, since for its sake God's Only-begotten Son became man, and thereby ennobled the nature that he took upon him.

Read Don Quixote; it is a very good book; I still read it frequently.

I confidently affirm that the greater part of those who are supposed to have died of gout, have died of the medicine rather than the disease - a statement in which I am supported by observation.

Fever itself is Nature's instrument.