All human life is sunk deep in untruth; the individual cannot pull it out of this well without growing profoundly annoyed with his entire past, without finding his present motives (like honor) senseless, and without opposing scorn and disdain to the passions that urge one on to the future and to the happiness in it.

In Christianity neither morality nor religion come into contact with reality at any point.

The most dangerous physicians are those born actors who imitate born physicians with a perfectly deceptive guile.

People live for the morrow, because the day-after-to-morrow is doubtful.

Rather perish than hate and fear, and twice rather perish than make oneself hated and feared — this must some day become the highest maxim for every single commonwealth.

The heart and hand of those who always mete out become callous from always meting out.

A man who whinnies with noisy laughter, surpasses all the animals in vulgarity.