True knowledge exists in knowing that you know nothing.

We can do nothing without the body, let us always take care that it is in the best condition to sustain us.

The soul, like the body, accepts by practice whatever habit one wishes it to contact.

Often when looking at a mass of things for sale, he would say to himself, 'How many things I have no need of!'

There is no possession more valuable than a good and faithful friend.

It is better to make a mistake with full force of your being than to carefully avoid mistakes with a trembling spirit.

Living or dead, to a good man there can come no evil.