When in sickness, look to the spine first.

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

To really know is science; to merely believe you know is ignorance.

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.

Nature itself is the best physician.

Life is short, art long, opportunity fleeting, experiment uncertain, and judgment difficult.

Where prayer, amulets and incantations work it is only a manifestation of the patient's belief.