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.

Although Alchemy has now fallen into contempt, and is even considered a thing of the past, the physicain should not be influenced by such judgements.

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.

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.