All parts of the body which have a function, if used in moderation and exercised in labors in which each is accustomed, become thereby healthy, well developed and age more slowly, but if unused they become liable to disease, defective in growth and age quickly.

Whoever is to acquire a competent knowledge of medicine, ought to be possessed of the following advantages: a natural disposition; instructionl a favorable place for the study; early tuition, love of labor; leisure.

...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.

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.

Get knowledge of the spine, for this is the requisite for many diseases

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.