Remember to keep a clear head in difficult times.

There are two main human sins from which all the others derive: impatience and indolence.

The greatest souls are capable of the greatest vices as well as of the greatest virtues.

The material has to be created.

Every failure is a step to success.

Adversity is the first path to truth.

To doubt everything or to believe everything are two equally convenient solutions; both dispense with the necessity of reflection.

The wound is at her heart.

If you make a mistake and do not correct it, this is called a mistake.

People, often deceived by an illusive good, desire their own ruin.

A man who cannot command himself will always be a slave.

Force without wisdom falls of its own weight.

The worst enemy you can meet will always be yourself.