The Earth would only have to move a few million kilometers sunward-or starward-for the delicate balance of climate to be destroyed. The Antarctic icecap would melt and flood all low-lying land; or the oceans would freeze and the whole world would be locked in eternal winter. Just a nudge in either direction would be enough.
Arthur C. ClarkeThe numbers of distinct human societies or nations, when our race is twice its present age, may be far greater than the total number of all the men who have ever lived up to the present time.
Arthur C. ClarkeIf we have learned one thing from the history of invention and discovery, it is that, in the long run-and often in the short one-the most daring prophecies seem laughably conservative.
Arthur C. ClarkeThe best measure of a man's honesty isn't his income tax return. It's the zero adjust on his bathroom scale.
Arthur C. Clarke