“For if a man by magical arts and sacrifices will bring down the moon, and darken the sun, and induce storms, or fine weather, I should not believe that there was anything divine, but human, in these things, provided the power of the divine were overpowered by human knowledge and subjected to it.”

“Eunuchs do not take the gout, nor become bald.”

“In whatever disease sleep is laborious, it is a deadly symptom; but if sleep does good, it is not deadly.”

“Life is short, the art long.”

“Natural forces within us are the true healers of disease.”

“If we could give every individual the right amount of nourishment and exercise, not too little and not too much, we would have found the safest way to health.”

“Keep a watch also on the faults of the patients, which often make them lie about the taking of things prescribed.”

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

“Whenever a doctor cannot do good, he must be kept from doing harm.”

“Walking is man's best medicine.”

“Healing is a matter of time, but it is sometimes also a matter of opportunity.”