The only excuse for God is that he doesn't exist.

When self control is lacking in small things, the ability to apply it to matters of importance withers away. Every day in which one does not at least deny himself some trifle is badly spent and a threat to the day following.

Compulsion precedes morality, indeed morality itself is compulsion for a time, to which one submits for the avoidance of pain.

What we do is never understood, but always merely praised or blamed.

What if God were not exactly truth, and if this could be proved? And if he were instead the vanity, the desire for power, the ambitions, the fear, and the enraptured and terrified folly of mankind?

One never perishes through anybody but oneself.

Those who are failures from the start, downtrodden, crushed -- it is they, the weakest, who must undermine life among men, who call into question and poison most dangerously our trust in life, in man, and in ourselves.