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.

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

Time is a brisk wind, for each hour it brings something new... but who can understand and measure its sharp breath, its mystery and its design?

What sense would it make or what would it benfit a physician if he discovered the origin of the diseases but could not cure or alleviate them?

He who knows nothing loves nothing. He who can do nothing understands nothing. He who understands nothing is worthless. But he who understands also loves, notices, sees. The more knowledge is inherent in a thing, the greater the love.

The beginning of wisdom is the beginning of supernatural power.

Anyone who imagines that all fruits ripen at the same time as the strawberries knows nothing about grapes.