Life is like music, it must be composed by ear, feeling and instinct, not by rule. Nevertheless one had better know the rules, for they sometimes guide in doubtful cases, though not often.

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.

Alterius non sit qui suus esse potest. (Let no man belong to another that can belong to himself.)

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.

Many have said of Alchemy, that it is for the making of gold and silver. For me such is not the aim, but to consider only what virtue and power may lie in medicines.

The dreams which reveal the supernatural are promises and messages that God sends us directly: they are nothing but His angels, His ministering spirits , who usually appear to us when we are in a great predicament.