Remain true to the earth.
Tolerance is a proof of distrust in one's own ideals.
There is more wisdom in your body than in your deepest philosophy.
The finest and healthiest thing about science is, as in the mountains, the brisk air blowing around in it.--The spiritually delicate (such as artists) shun and slander science owing to this air.
Man must become better and more evil.
So live your life of obedience and of war! What matter about long life! What warrior wisheth to be spared!