Personally, I refuse to drive a car - I won't have anything to do with any kind of transportation in which I can't read.
Moses Kaldor had always loved mountains; they made him feel nearer to the God whose nonexistence he still sometimes resented.
The only way of discovering the limits of the possible is to venture a little way past them into the impossible.
. . . Moon-Watcher felt the first faint twinges of a new and potent emotion. It was a vague and diffuse sense of envy-of dissatisfaction with his life. He had no idea of its cause, still less of its cure; but discontent had come into his soul, and he had taken one small step toward humanity.
In this single galaxy of ours there are eighty-seven thousand million suns. [...] In challenging it, you would be like ants attempting to label and classify all the grains of sand in all the deserts of the world. [...] It is a bitter thought, but you must face it. The planets you may one day possess. But the stars are not for man.
What was more, they had taken the first step toward genuine friendship. They had exchanged vulnerabilities.
I am an optimist. Anyone interested in the future has to be otherwise he would simply shoot himself.
. . . the newspapers of Utopia, he had long ago decided, would be terribly dull.