That which needs to be proved cannot be worth much.

And we should consider every day lost on which we have not danced at least once. And we should call every truth false which was not accompanied by at least one laugh.

What really raises one's indignation against suffering is not suffering intrinsically, but the senselessness of suffering

Prejudice of the learned. - The learned judge correctly that people of all ages have believed they know what is good and evil, praise- and blameworthy. But it is a prejudice of the learned that we now know better than any other age.

At every step one has to wrestle for truth; one has to surrender for it almost everything to which the heart, to which our love, our trust in life, cling otherwise. That requires greatness of soul: the service of truth is the hardest service. What does it mean, after all, to have integrity in matters of the spirit? That one is severe against one's heart...that one makes of every Yes and No a matter of conscience.

When, however, you have an enemy, then do not requite him good for evil: for that would shame him. Instead, prove that he did some good for you. And rather be angry than put to shame! And when you are cursed, I do not like it that you want to bless. Rather curse a little also! And if you are done a great injustice, then quickly add five small ones. Hideous to behold is he who is obsessed with an injustice.

The transition from Religion to Scientific contemplation is a violent, dangerous leap, which is not to be recommended. In order to make this transition, art is far rather to be employed to relieve the mind overburdened with emotions. Out of the illogical comes much good. It is so firmly rooted in the passions, in language, in art, in religion, and generally in everything which gives value to life. It is only the naive people who can believe that the nature of man can be changed into a purely logical one. We have yet to learn that others can suffer, and this can never be completely learned.