Rest as soon as there is pain.

A physician who is a lover of wisdom is the equal to a god.

Men ought to know that from nothing else but the brain come joys, delights, laughter and sports, and sorrows, griefs, despondency, and lamentations. And by this, in an especial manner, we acquire wisdom and knowledge, and see and hear and know what are foul and what are fair, what are bad and what are good, what are sweet and what are unsavory…. And by the same organ we become mad and delirious, and fears and terrors assail us….All these things we endure from the brain when it is not healthy….In these ways I am of the opinion that the brain exercises the greatest power in the man.

It is better not to apply any treatment in cases of occult cancer; for if treated (by surgery), the patients die quickly; but if not treated, they hold out for a long time.

Life is short, art long, opportunity fleeting, experiment uncertain, and judgment difficult.

And he will manage the cure best who has foreseen what is to happen from the present state of matters.

He who wishes to be a surgeon should go to war.