Even when all is known, the care of a man is not yet complete, because eating alone will not keep a man well; he must also take exercise. For food and exercise, while possessing opposite qualities, yet work together to produce health.

The human soul develops up to the time of death.

Walking is man's best medicine.

What medicines do not heal, the lance will; what the lance does not heal, fire will.

He who wishes to be a surgeon should go to war.

The natural force within each of us is that greatest healer of all.

Make a habit of two things: to help; or at least to do no harm.