If you are not your own doctor, you are a fool.
The wise man should consider that health is the greatest of human blessings. Let food be your medicine.
Walking is man's best medicine.
The patient must combat the disease along with the physician.
The physician must be able to tell the antecedents, know the present, and foretell the future — must mediate these things, and have two special objects in view with regard to disease, namely, to do good or to do no harm.
Science begets knowledge; opinion, ignorance.