The physician must give heed to the region in which the patient lives, that is to say, to its type and peculiarities.

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.

It is said that a wise man rules over the stars, but this does not mean that he rules over the influences which come from the stars in the sky. It means that he rules over the powers which exist in his own constitution.

Let no one who can be his own belong to another.

All things are poisons. It is simply the dose that distinguishes between a poison and a remedy.

All things are poisons, for there is nothing without poisonous qualities. It is only the dose which makes a thing poison.

From time immemorial artistic insights have been revealed to artists in their sleep and in dreams, so that at all times they ardently desired them.