Foolish the doctor who despises the knowledge acquired by the ancients.

Fat people who want to reduce should take their exercise on an empty stomach and sit down to their food out of breath.... Thin people who want to get fat should do exactly the opposite and never take exercise on an empty stomach.

Rest as soon as there is pain.

A wise man ought to realize that health is his most valuable possession.

Where prayer, amulets and incantations work it is only a manifestation of the patient's belief.

Some patients, though conscious that their condition is perilous, recover their health simply through their contentment with the goodness of the physician.

Into whatsoever houses I enter, I will enter to help the sick, and I will abstain from all intentional wrong-doing and harm, especially from abusing the bodies of man or woman, bond or free. And whatsoever I shall see or hear in the course of my profession, as well as outside my profession in my intercourse with men, if it be what should not be published abroad, I will never divulge, holding such things to be holy secrets.