“Be kind, be all sympathy, for each and every human being is forced to fight against himself.”

Source: Memoirs of a Geisha

Written in regard to the Allied destruction of Hamburg and other German cities, p. 437
Memoirs 1925 - 1950 (1967), Germany
Context: Here, for the first time, I felt an unshakable conviction that no momentary military advantage — even if such could have been calculated to exist — could have justified this stupendous, careless destruction of civilian life and of material values, built up laboriously by human hands over the course of centuries for purposes having nothing to do with war. Least of all could it have been justified by the screaming non sequitur: "They did it to us." And it suddenly appeared to me that in these ruins there was an unanswerable symbolism which we in the West could not afford to ignore. If the Western world was really going to make a pretense of a higher moral departure point — of greater sympathy and understanding for the human being as God made him, as expressed not only in himself but in the things he had wrought and cared about — then it had to learn to fight its wars morally as well as militarily, or not fight them at all; for moral principles were a part of its strength. Shorn of this strength, it was no longer itself; its victories were not real victories; and the best it would accomplish in the long run would be to pull down the temple over its own head. The military would stamp this as naïve; they would say that war is war, that when you're in it you fight with every means you have, or go down in defeat. But if that is the case, then there rests upon Western civilization, bitter as this may be, the obligation to be militarily stronger than its adversaries by a margin sufficient to enable it to dispense with those means which can stave off defeat only at the cost of undermining victory.

Fyodor Dostoevsky in The Brothers Karamazov; this was used as an epigraph in The Blood of Others, and is sometimes attributed to de Beauvoir
Misattributed

The Highest of the High (1953)
Context: Consciously or unconsciously, directly or indirectly, each and every creature, each and every human being — in one form or the other — strives to assert individuality. But when eventually man consciously experiences that he is Infinite, Eternal and Indivisible, then he is fully conscious of his individuality as God, and as such experiences Infinite Knowledge, Infinite Power and Infinite Bliss.

Source: A World Waiting to Be Born: Civility Rediscovered

Source: Power and Innocence (1972), Ch. 11 : The Humanity of the Rebel

Source: Clockwork Prince