Natasha and I said more than once that one may arrive at such a physical condition that it would be better to cut short one's own life or, more correctly, the too slow process of dying … But whatever may be the circumstances of my death I shall die with unshaken faith in the communist future. This faith in man and in his future gives me even now such power of resistance as cannot be given by any religion.

Trotsky's Testament (1940)