For one country is different from another; its earth is different, as are its stones, wines, bread, meat, and everything that grows and thrives in a specific region.

Poison is in everything, and no thing is without poison. The dosage makes it either a poison or a remedy.

In every human being there is a special heaven, whole and unbroken.

Everything is a drug; it depends on the dose.

Man is ill because he is never still.

Magic has power to experience and fathom things which are inaccessible to human reason. For magic is a great secret wisdom, just as reason is a great public folly.

If we want to make a statement about a man's nature on the basis of his physiognomy, we must take everything into account; it is in his distress that a man is tested, for then his nature is revealed.