...the only psychologist from whom I have anything to learn.

Mathematics would certainly have not come into existence if one had known from the beginning that there was in nature no exactly straight line, no actual circle, no absolute magnitude.

Pity is the most pleasant feeling in those who have not much pride and have no prospect of great conquests; for them the easy prey - and that is what all who suffer are - is enchanting.

Those who are failures from the start, downtrodden, crushed -- it is they, the weakest, who must undermine life among men, who call into question and poison most dangerously our trust in life, in man, and in ourselves.

No victor believes in chance.

But eternal liveliness is what counts: what does "eternal life" matter, or life at all?

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.