Rest not Life is sweeping by go and dare before you die. Something mighty and sublime, leave behind to conquer time.

Enjoy when you can, and endure when you must.

It is not enough to take steps which may someday lead to a goal; each step must be itself a goal and a step likewise.

Be always resolute with the present hour. Every moment is of infinite value.

Classicism is health, romanticisim is sickness.

Without my attempts in natural science, I should never have learned to know mankind such as it is. In nothing else can we so closely approach pure contemplation and thought, so closely observe the errors of the senses and of the understanding, the weak and strong points of character.

This being busied with thoughts of immortality is for the noble classes and especially for women with nothing to do. A solid person, though, someone who already intends to be something worthy here, and who therefore has to strive daily, has to struggle and work, gives the world to come a rest.