Every physician must be rich in knowledge, and not only of that which is written in books; his patients should be his book, they will never mislead him.

The art of healing comes from nature, not from the physician. Therefore the physician must start from nature, with an open mind.

A mortal lives not through that breath that flows in and that flows out. The source of his life is another and this causes the breath to flow.

All drugs are poisons the benefit depends on the dosage.

When a man undertakes to create something, he establishes a new heaven, as it were, and from it the work that he desires to create flows into him... For such is the immensity of man that he is greater than heaven and earth.

That which lives on reason lives against the spirit.

A little bit of beer is divine medicine.