They ought to find out how to vaccinate for love, like smallpox.

Human love serves to love those dear to us but to love one's enemies we need divine love.

A good player who loses at chess is genuinely convinced hat he has lost because of a mistake, and he looks for this mistake in the beginning of his game, but forgets that there were also mistakes at ever step in the course of the game, that none of his moves was perfect. The mistake he pays attention to is conspicuous only because his opponent took advantage of it.

Governments not only are not necessary, but are harmful and most highly immoral institutions.

Man survives earthquakes, epidemics, the horrors of disease, and all the agonies of the soul, but for all time his tormenting tragedy is, and will be, the tragedy of the bedroom.

And not only the pride of intellect, but the stupidity of intellect. And, above all, the dishonesty, yes, the dishonesty of intellect. Yes, indeed, the dishonesty and trickery of intellect.

The example of a syllogism that he had studied in Kiesewetter's logic: Caius is a man, men are mortal, therefore Caius is mortal, had throughout his whole life seemed to him right only in relation to Caius, but not to him at all.