The task is not to overcome opponents in general but only those opponents against whom one has to summon all one's strength, one's skill and one's swordsmanship-in fact to master opponents who are one's equals.

Philosophers are in the habit of setting themselves before life and experience.

Yes, life is a woman!

That God became man indicates only this: that man should not seek his salvation in eternity, but rather establish his heaven on earth.

The refinement of morality increases together with the refinement of fear. Today the fear of disagreeable feelings in other people is almost the strongest of our own disagreeable feelings.

We do not belong to those who only get their thought from books, or at the prompting of books, -- it is our custom to think in the open air, walking, leaping, climbing, or dancing on lonesome mountains by preference, or close to the sea, where even the paths become thoughtful.

As soon as we are shown the existence of something old in a new thing, we are pacified.