“Like every other destruction of optimism, whether in a whole civilisation or in a single individual, these must have been unspeakable catastrophes for those who had dared to expect progress. But we should feel more than sympathy for those people. We should take it personally. For if any of those earlier experiments in optimism had succeeded, our species would be exploring the stars by now, and you and I would be immortal.”

“The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.”

“A great deal; you are good to those who are good to you. It is all I ever desire to be. If people were always kind and obedient to those who are cruel and unjust, the wicked people would have it all their own way; they would never feel afraid, and so they would never alter, but would grow worse and worse. When we are struck at without a reason, we should strike back again very hard; I am sure we should - so hard as to teach the person who struck us never to do it again.”

“It had always struck her as wrong that we should judge ourselves-or, more usually, others-by single acts, as if a single snapshot said anything about what a person had been like over the whole course of his life. It could say something, of course, but only if it was typical of how that person behaved; otherwise, no, all it said that at that moment, in those particular circumstances, temptation won a local victory.”

“If we had no faults of our own, we would not take so much pleasure in noticing those of others.”

“We dislike talking about our experiences. No explanations are needed for those who have been inside, and the others will understand neither how we felt then nor how we feel now.”