The Three Laws are the essential guiding principles of a good many of the world's ethical systems. If a man were to live up to them, he would be a go… - Isaac Asimov

Every atom in me has a long history during which it may have been part of many living things, including human beings, and during which it may also have spent long periods as part of the sea, or in a lump of coal, or in a rock, or as a portion of the wind blowing upon us.

Lo aún peor es que el Universo no morirá con nosotros. De manera firme e inmortal continúa hacia sus cambios cíclicos, añadiendo a la injuria de la muerte el insulto de la indiferencia.

At least once every human should have to run for his life, to teach him that milk does not come from supermarkets, that safety does not come from policemen, that “news” is not something that happens to other people. He might learn how his ancestors lived and that he himself is no different — in the crunch his life depends on his agility, alertness, and personal resourcefulness.