Even when all is known, the care of a man is not yet complete, because eating alone will not keep a man well; he must also take exercise. For food and exercise, while possessing opposite qualities, yet work together to produce health.

Things that are holy are revealed only to men who are holy.

Eunuchs do not take the gout, nor become bald.

Look to the seasons when choosing your cures

He who does not understand astrology is not a doctor but a fool.

There is one common flow, one common breathing, all things are in sympathy.

That which is used - develops. That which is not used wastes away.