Whenever a doctor cannot do good, he must be kept from doing harm.
Old people have fewer diseases than the young, but their diseases never leave them.
Men think epilepsy divine, merely because they do not understand it. We will one day understand what causes it, and then cease to call it divine. And so it is with everything in the universe.
The art is long, life is short
Walking is a man's best medicine.
Male and female have the power to fuse into one solid, both because both are nourished in both and also because soul is the same thing in all living creatures, although the body of each is different.