The function of protecting and developing health must rank even above that of restoring it when it is impaired.
To keep the body in good health is a duty...otherwise, we shall not be able to keep our mind strong and clear.
The physician's highest calling, his only calling, is to make sick people healthy - to heal, as it is termed.
The art of healing comes from nature, not from the physician. Therefore, the physician must start from nature, with an open mind.
The art of medicine was to be properly learned only from its practice and its exercise.
Medicine is the restoration of discordant elements; sickness is the discord of the elements infused into the living body.