“Sitting there on the heather, on our planetary grain, I shrank from the abysses that opened up on every side, and in the future. The silent darkness, the featureless unknown, were more dread than a...”

“I perceived that I was on a little round grain of rock and metal, filmed with water and with air, whirling in sunlight and darkness. And on the skin of that little grain all the swarms of men, gene...”

“It was strange to us that none of these three victims made any attempt to resist the attack. Indeed, not one inhabitant in any of these worlds considered for a moment the possibility of resistance....”

“Many of the great economic masters, though they had originally favored radio-bliss in moderation as an opiate for the discontented workers, now turned against it. Their craving was for power; and f...”

“No visiting angel, or explorer from another planet could have guessed that this bland orb teemed with vermin, with world-mastering, self-torturing, incipiently angelic beasts.”

“In this passionately social world, loneliness dogged the spirit. People were constantly getting together, but they never really got there. Everyone was terrified of being alone with himself; yet in...”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”