The true measure of a man is not his intelligence or how high he rises in this freak establishment. No, the true measure of a man is this: how quickly can he respond to the needs of others and how much of himself he can give.

Grief causes you to leave yourself. You step outside your narrow little pelt. And you can’t feel grief unless you’ve had love before it - grief is the final outcome of love, because it’s love lost. […] It’s the cycle of love completed: to love, to lose, to feel grief, to leave, and then to love again. Grief is the awareness that you will have to be alone, and there is nothing beyond that because being alone is the ultimate final destiny of each individual living creature. That’s what death is, the great loneliness.

Many men talk like philosophers and live like fools.

The real origin of science fiction lay in the seventeeth-century novels of exploration in fabulous lands. Therefore Jules Verne's story of travel to the moon is not science fiction because they go by rocket but because of where they go. It would be as much science fiction if they went by rubber band.

A man is an angel that has gone deranged.

Activity does not necessarily mean life. Quasars are active. And a monk meditating is not inanimate.

Every junkie, he thought, is a recording.