Once we have found ourselves, we must understand how from time to time to lose--and then to find--ourselves once again: assuming,that is, that we are thinkers. For a thinker it is a drawback to be bound to a single person all the time.
On the mountains of truth you can never climb in vain: either you will reach a point higher up today, or you will be training your powers so that you will be able to climb higher tomorrow.
Rendering oneself unarmed when one had been the best-armed, out of a height of feeling-that is the means to real peace, which must always rest on a peace of mind.
Science ... has no consideration for ultimate purposes, any more than Nature has, but just as the latter occasionally achieves things of the greatest suitableness without intending to do so, so also true science, as the imitator of nature in ideas, will occasionally and in many ways further the usefulness and welfare of man,-but also without intending to do so.
We must beware of one who is in a passion against us as of one who has once sought our life; for the fact that we still live is due to the absence of power to kill, - if looks could kill, we should have been dead long ago.
All sciences are now under the obligation to prepare the ground for the future task of the philosopher, which is to solve the problem of value, to determine the true hierarchy of values.
The sexes deceive themselves about one another: the reason being that at bottom they honor and love only themselves (or their ownideal, to express it more agreeably). Thus man wants woman to be peaceable--but woman is essentially, like the cat, not peaceable, however well she may have trained herself to assume the appearance of peace.