Obstacles cannot crush me; every obstacle yields to stern resolve.

Obstacles cannot crush me. Every obstacle yields to stern resolve. He who is fixed to a star does not change his mind.

As a well-spent day brings happy sleep, so a life well used brings happy death.

Simplicity is the ultimate sophistication.

There are three classes of people: those who see, those who see when they are shown, those who do not see.

Where the spirit does not work with the hand, there is no art.