Do not hurry; do not rest.

Normally, the sciences distance themselves from life and the return to it via a detour.

He who is and remains true to himself and to others has the most attractive quality of the greatest talent.

Everyone is deceived in his hopes, cheated in his expectations.

If all these devils really exist it proves there must be angels, too.

It is equally a mistake to hold one's self too high, or to rate one's self too cheap.

The safest thing is always to try to convert everything that is in us and around us into action; let the others talk and argue about it as they please.