“Without the hope of posterity, for our race if not for ourselves, without the assurance that we being dead yet live, all pleasures of the mind and senses sometimes seem to me no more than pathetic and crumbling defences shored up against our ruin.”

“We have all sinned, Mr. Darcy, and we cannot look for mercy without showing it in our lives.”

“Man is diminished if he lives without knowledge of his past; without hope of a future he becomes a beast.”

“It had always been a part of his job which he found difficult, the total lack of privacy for the victim. Murder stripped away more than life itself. The body was parceled, labelled, dissected; address books, diaries, confidential letters, every part of the victim's life was sought out and scrutinized. Alien hands moved among the clothes, picked up and examined the small possessions, recorded and labelled for public view the sad detritus of sometimes pathetic lives.”

“If our sex life were determined by our first youthful experiments, most of the world would be doomed to celibacy. In no area of human experience are human beings more convinced that something better can be had only if they persevere.”

“Daniel supposed he had a secret life. Most people did; it was hardly possible to live without one.”

“Of the four billion life forms which have existed on this planet, three billion, nine hundred and sixty million are now extinct. We don't know why. Some by wanton extinction, some through natural catastrophe, some destroyed by meteorites and asteroids. In the light of these mass extinctions it really does seem unreasonable to suppose that Homo sapiens should be exempt. Our species will have been one of the shortest-lived of all, a mere blink, you may say, in the eye of time.”