Whenever a doctor cannot do good, he must be kept from doing harm.

Life is short and the art long.

Silence is not only never thirsty, but also never brings pain or sorrow.

The greatest medicine of all is teaching people how not to need it

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.

When doing everything according to indications, although things may not turn out agreeably to indication, we should not change to another while the original appearances remain.

The chief virtue that language can have is clearness, and nothing detracts from it so much as the use of unfamiliar words.