"Faith" as an imperative is a veto against science-in praxi, it means lies at any price.

Ah, how little you know of human happiness - you comfortable and benevolent people! For happiness and unhappiness are brother and sister - or even twins who grow up together - or in your case - remain small together!

It is not in our hands to prevent our birth; but we can correct this mistake - for in some cases it is a mistake.

I would only believe in a god who could dance. And when I saw my devil I found him serious, thorough, profound, and solemn: it was the spirit of gravity—through him all things fall. Not by wrath does one kill but by laughter. Come, let us kill the spirit of gravity!

Aphorisms should be peaks - and those who are addressed, tall and lofty. The air thin and pure, danger near, and the spirit full of gay sarcasm: these go well together.

I am a forest, and a night of dark trees: but he who is not afraid of my darkness, will find banks full of roses under my cypresses.

A great value of antiquity lies in the fact that its writings are the only ones that modern men still read with exactness.