952 Quotes by Isaac Asimov

And Elvex said, "I was the man." - In "Robot dreams" (Short story)

most of the iron that has found its way into the Earth's core and its surface rocks - and into our own blood, as well - once existed in white dwarfs that exploded

Life is not like a murder mystery. In mysteries people always do the same thing. Then when some little thing is out of line, some wise-guy amateur detective makes big deductions. In real life, people don't do the same things all the time. They do different things at different times. In real life, people are crazy.

Can entropy ever be reversed?""We both know entropy can't be reversed. You can't turn smoke and ash back into a tree.""Do you have trees on your world?"The sound of the Galactic AC startled them into silence. Its voice came thin and beautiful out of the small AC-contact on the desk. It said: "THERE IS INSUFFICIENT DATA FOR A MEANINGFUL ANSWER

Any planet is 'Earth' to those that live on it.

The fall of Empire, gentlemen, is a massive thing, however, and not easily fought. It is dictated by a rising bureaucracy, a receding initiative, a freezing of caste, a damming of curiosity—a hundred other factors. It has been going on, as I have said, for centuries, and it is too majestic and massive a movement to stop.

The City was the acme of efficiency, but it made demands of its inhabitants. It asked them to live in a tight routine and order their lives under a strict and scientific control.

It was childish to feel disappointed, but childishness comes almost as naturally to a man as to a child.

He didn’t believe that, surely.” “Of course not! But he had to pretend he did, as otherwise he would have had no choice but to be insulted. And since there would be nothing he could do about that, being insulted would only lead to humiliation. And since he didn’t want that, the simplest path to follow was to believe what I said.