Gratitude is a soil on which joy thrives.

Weak men are easily put out of humor. Oil freezes quicker than water.

Some men, like modern shops, hang everything in their show windows; when one goes inside, nothing is to be found.

It is only when one is thoroughly true that there can be purity and freedom. Falsehood always punishes itself.

With hat in hand, one gets on in the world.

When you have discovered a stain in yourself, you eagerly seek for and gladly find stains in others.

Discontent is the source of all trouble,but also of all progress, in individuals and nations.