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.

The life so short, the craft so long to learn.

War is the only proper school of the surgeon.

Rest as soon as there is pain.

Opposites are cures for opposites.

Just as food causes chronic disease, it can be the most powerful cure

Where there is love of medicine, there is love of humankind.