All that philosophers have handled for millennia has been conceptual mummies; nothing actual has ever escaped from their hands alive.

Moral sensibilities are nowadays at such cross-purposes that to one man a morality is proved by its utility, while to another its utility refutes it.

Whoever despises himself still esteems the despiser within himself.

The essential thing ‘in heaven and earth’ is that there should be a long obedience in the same direction; there thereby results, and has always resulted in the long run, something which has made life worth living.

Genuine historical knowledge requires nobility of character, a profound understanding of human existence - not detachment and objectivity.

What do you believe in?--In this, that the weights of all things must be determined anew.

there they laugh: they do not understand me; I am not the mouth for these ears.