Wherever Germany extends her sway, she ruins culture.

One who has a why can endure anyhow.

Sometimes it just takes stronger eyeglasses to cure those who are in love--and someone with the ability to imagine a face or a figure twenty years older might perhaps pass through life quite undisturbed.

A married philosopher belongs to comedy.

I can tell by my own reaction to it that this book is harmful." But let him only wait and perhaps one day he will admit to himself that this same book has done him a great service by bringing out the hidden sickness of his heart and making it visible.— Altered opinions do not alter a man’s character (or do so very little); but they do illuminate individual aspects of the constellation of his personality which with a different constellation of opinions had hitherto remained dark and unrecognizable.

Heavy, heavy-hearted people grow lighter and rise occasionally to their surface through precisely that which makes others heavier,through hatred and love.

The enjoyment that all morality has given us to now and that it continues to give us--and so, what has kept it going up to now--lies in everyone's right, without lengthy investigation, to praise and blame. And who could endure life without praising and blaming!