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

All excesses are inimical to Nature. It is safer to proceed a little at a time, especially when changing from one regimen to another.

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hear in the course of my profession, as well as outside my profession in my intercourse with men, if it be what should not be published abroad, I will never divulge, holding such things to be holy secrets.

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.

...all the most acute, most powerful, and most deadly diseases, and those which are most difficult to be understood by the inexperienced, fall upon the brain.

To do nothing is sometimes a good remedy.

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