Time, space, and causality are only metaphors of knowledge, with which we explain things to ourselves.

One does not hate so long as one continues to rate low, but only when one has come to rate equal or higher.

Precisely the least, the softest, lightest, a lizard's rustling, a breath, a flash, a moment - a little makes the way of the best happiness.

We are, indeed, not among the least contented. You, however, if your belief makes you blessed then appear to be blessed! Your faces have always been more injurious to your belief than our objections have! If these glad tidings of your Bible were written on your faces, you would not need to insist so obstinately on the authority of that book ... As things are, however, all your apologies for Christianity have their roots in your lack of Christianity; with your defense plea you inscribe your own bill of indictment.

Sometimes people don't want to hear the truth because they don't want their illusions destroyed.

Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you.

A book calls for pen, ink, and a writing desk; today the rule is that pen, ink, and a writing desk call for a book.