Systems of morals are only a sign-language of the emotions.

To learn from our enemies is the best pathway to loving them: for it makes us grateful to them.

The most instructive experiences are those of everyday life.

Man, full of emptiness and torn apart with homesickness for the desert has had to create from within himself an adventure, a torture-chamber, an unsafe and hazardous wilderness- this fool, this prisoner consumed with longing and despair, became the inventor of 'bad conscience'.

A woman may very well form a friendship with a man, but for this to endure, it must be assisted by a little physical antipathy.

I fly in dreams, I know it is my privilege, I do not recall a single situation in dreams when I was unable to fly. To execute every sort of curve and angle with a light impulse, a flying mathematics - that is so distinct a happiness that it has permanently suffused my basic sense of happiness.

I condemn Christianity; I bring against the Christian Church the most terrible of all accusations that an accuser has ever had in his mouth. It is, to me, the greatest of all imaginable corruptions; it seeks to work the ultimate corruption, the worse possible corruption. The Christian Church has left nothing untouched by its depravity; it has turned every value into worthlessness, and every truth into a lie, and every integrity into baseness of soul.