Utopia was here at last: its novelty had not yet been assailed by the supreme enemy of a ll Utopias - boredom.

Behind every man now alive stand thirty ghosts, for that is the ratio by which the dead outnumber the living.

Judge me by my deeds, though they are few, rather than my words, though they are many.

My objection to organized religion is the premature conclusion to ultimate truth that it represents.

We stand now at the turning point between two eras. Behind us is a past to which we can never return... The coming of the rocket brought to an end a million years of isolation... the childhood of our race was over and history as we know it began.

Before the current decade ends, fee-paying passengers will be experiencing suborbital flights aboard privately funded vehicles. . . . It won't be too long before bright young men and women set their eyes on careers in Earth orbit and say: "I want to work 200 kilometers from home-straight up!"

Can the synthesis of man and machine ever be stable, or will the purely organic component become such a hindrance that it has to be discarded?