Man is ill because he is never still.

Dreams must be heeded and accepted. For a great many of them come true.

Medicine rests upon four pillars - philosophy, astronomy, alchemy, and ethics.

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.

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.

The most secure method, to ruin your health, is a SICK BED!

Man is a microcosm, or a little world, because he is an extract from all the stars and planets of the whole firmament, from the earth and the elements; and so he is their quintessence.