The moment love is equated with happiness, it is satisfied — and is no longer love. The satisfied, the happy ones, do not love; they fall asleep in habit, near neighbor to annihilation.

Knowledge for the sake of knowledge! Truth for truth's sake! This is inhuman.

A lot of good arguments are spoiled by some fool who knows what he is talking about.

Love personalizes all that it loves. Only by personalizing it can we fall in love with an idea.

The supreme triumph of reason is to cast doubt upon its own validity.

If it is nothingness that awaits us, let us make an injustice of it, let us fight against destiny, even without hope of victory.

It is not the shilling I give you that counts, but the warmth that it carries with it from my hand.