When you cease to strive to understand, then you will know without understanding.

One should be just as careful in choosing one's pleasures as in avoiding calamities.

Medicine can only cure curable diseases, and then not always.

The fire you kindle for your enemy often burns yourself more than him.

There are two perfectly good men; one dead, and the other unborn.

Never do anything standing that you can do sitting, or anything sitting that you can do lying down.

People live like birds in the woods: When the time comes, each must take flight.

Nature is better than a middling doctor.

The greatest conqueror is he who overcomes the enemy without a blow.

Those who do not study are only cattle dressed up in men's clothes.