The more brilliant the lightning, the quicker it disappears.

The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes.

An ignorant doctor is the aide-de-camp of death.

There are no incurable diseases — only the lack of will. There are no worthless herbs — only the lack of knowledge.

It is in the nature of water ... to become transformed into earth through a predominating earthy virtue; ... it is in the nature of earth to become transformed into water through a predominating aqueous virtue.

When you do not know the nature of the malady, leave it to nature; do not strive to hasten matters. For either nature will bring about the cure or it will itself reveal clearly what the malady really is.

Medicine considers the human body as to the means by which it is cured and by which it is driven away from health.