Don't mess up the environment until you're quite sure what you're doing. — Arthur C. Clarke Copy Share Image
Human judges can show mercy. But against the laws of nature, there is no appeal. — Arthur C. Clarke Copy Share Image
Moses Kaldor had always loved mountains; they made him feel nearer to the God whose nonexistence he still sometimes resented. — Arthur C. Clarke Copy Share Image
The phenomenon of UFO doesn't say anything about the presence of intelligence in space. It just shows how rare it is here… — Arthur C. Clarke Copy Share Image
All human plans [are] subject to ruthless revision by Nature, or Fate, or whatever one preferred to call the powers behind the… — Arthur C. Clarke Copy Share Image
Since women are better at producing babies, presumably Nature has given men some talent to compensate. But for the moment I can't… — Arthur C. Clarke Copy Share Image
“The meteorites of 1908 and 1947 had struck uninhabited wilderness; but by the end of the twenty-first century there was no region… — Arthur C. Clarke Copy Share Image
“New knowledge—new wisdom—in realms we have never dreamed of before. It may lure us away from the dangers we have encountered: for… — Arthur C. Clarke Copy Share Image
If man survives for as long as the least successful of the dinosaurs-those creatures whom we often deride as nature's failures-then we… — Arthur C. Clarke Copy Share Image
There's a passage about 'rivers of molten rock that wound their way... until they cooled and lay like twisted dragon-shapes vomited from… — Arthur C. Clarke Copy Share Image
Many, and some of the most pressing, of our terrestrial problems can be solved only by going into space. Long before it… — Arthur C. Clarke Copy Share Image
“Jupiter's fly-by had been carried out with impeccable precision. Like a ball on a cosmic pool table, Discovery had bounced off the… — Arthur C. Clarke Copy Share Image
Science can destroy religion by ignoring it as well as by disproving its tenets. No one ever demonstrated, so far as I am aware,… — Arthur C. Clarke Copy Share Image
We cannot predict the new forces, powers, and discoveries that will be disclosed to us when we reach the other planets and set up… — Arthur C. Clarke Copy Share Image
I am unable to distinguish clearly between your religious ceremonies and apparently identical behavior at the sporting and cultural functions you have transmitted to… — Arthur C. Clarke Copy Share Image
I don't believe in astrology; I'm a Sagittarius and we're skeptical. — Arthur C. Clarke Copy Share Image
You can't have it both ways. You can't have both free will and a benevolent higher power who protects you from yourself. — Arthur C. Clarke Copy Share Image
Nowhere in space will we rest our eyes upon the familiar shapes of trees and plants, or any of the animals that share our… — Arthur C. Clarke Copy Share Image
“The universe is full of energy, but much of it is at equilibrium. At equilibrium no energy can flow, and therefore it cannot be… — Arthur C. Clarke Copy Share Image
“Here the trees surrounded them with an invisible, anechoic blanket, so that every word seemed sucked into silence the moment it was uttered.” — Arthur C. Clarke Copy Share Image
“I’m a scientific expert; that means I know nothing about absolutely everything.” — Arthur C. Clarke Copy Share Image
There were some things that only time could cure. Evil men could be destroyed, but nothing could be done with good men who were… — Arthur C. Clarke Copy Share Image
“Pure coincidence, of course, but a sensible man makes coincidences work for him.” — Arthur C. Clarke Copy Share Image