Opposites are cures for opposites.

A sensible man ought to think about that well being is the best of human blessings, and find out how by his personal thought to derive profit from his sicknesses.

Primum non nocerum. (First do no harm)

I will use treatment to help the sick according to my ability and judgment, but never with a view to injury and wrongdoing. Neither will I administer a poison to anybody when asked to do so, nor will I suggest such a course. Similarly, I will not give to a woman a pessary to cause abortion. I will keep pure and holy both my life and my art.

The natural healing force within each one of us is the greatest force in getting well.

Walking is man's best medicine.

What I may see or hear in the course of the treatment or even outside of the treatment in regard to the life of men, which on no account one must spread abroad, I will keep to myself holding such things shameful to be spoken about.