Consciousness is a disease.
What we believe to be the motives of our conduct are usually but the pretexts for it.
Chemistry ought to be not for chemists alone.
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 sad not to love, but it is much sadder not to be able to love.
Suffering is the substance of life and the root of personality, for it is only suffering that makes us persons.