The body of man has in itself blood, phlegm, yellow bile and black bile; these make up the nature of this body, and through these he feels pain or enjoys health. Now he enjoys the most perfect health when these elements are duly proportioned to one another in respect of compounding, power and bulk, and when they are perfectly mingled.

A physician who is a lover of wisdom is the equal to a god.

When in sickness, look to the spine first.

War is the only proper school of the surgeon.

Nature itself is the best physician.

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

A physician without a knowledge of Astrology has no right to call himself a physician.