To think is easy. To act is difficult. To act as one thinks is the most difficult.

If you want a wise answer, ask a reasonable question.

We can really respect a man only if he doesn't always look out for himself.

Never by reflection, but only by doing is self- knowledge possible to one.

For a man to achieve all that is demanded of him he must regard himself as greater than he is.

The work of art may have a moral effect, but to demand moral purpose from the artist is to make him ruin his work.

Don't give us your doubts, gives us your certainties, for we have doubts enough of our own.