The forms of diseases are many and the healing of them is manifold.

Each of the substances of a man's diet acts upon his body and changes it in some way and upon these changes his whole life depends.

The dignity of a physician requires that he should look healthy, and as plump as nature intended him to be; for the common crowd consider those who are not of this excellent bodily condition to be unable to take care of themselves.

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

First of all a natural talent is required; for when Nature opposes, everything else is in vain; but when Nature leads the way to what is most excellent, instruction in the art takes place.

Eunuchs do not take the gout, nor become bald.

Just as food causes chronic disease, it can be the most powerful cure