A ship should not ride on a single anchor, nor life on a single hope.
--
Fragment xvi.Epictetus
When the captain throws out his sheet-anchor, and the ship "rides at anchor," as it is called, there is a great strain on every link of that chain; and if one bad link breaks, off goes the anchor, and the ship is driven before the winds, and may be destroyed. Now, our character is very much like the chain; one bad piece vitiates and spoils it. So we must have a pure character.
John (Presbyterian pastor) Hall
You could not predict what would happen in a single instance, a single throw of the dice, a single pitch in the seventh inning, a single toss of the coin. But you could predict three out of five, four out of ten, seven out of sixteen, and to that extent chance governed everyone, all the time. Just as surely as two equals two.
Michael Crichton
Granted, in daily speech, where we don't stop to consider every word, we all use phrases like "the ordinary world," "ordinary life," "the ordinary course of events"... But in the language of poetry, where every word is weighed, nothing is usual or normal. Not a single stone and not a single cloud above it. Not a single day and not a single night after it. And above all, not a single existence, not anyone's existence in this world.
It looks like poets will always have their work cut out for them.Wislawa Szymborska
Unfortunately, all life on earth - the only life we know - represents, for all its current variety, the results of a single experiment, for every earthly species evolved from the common ancestry of a single origin. We desperately need a repetition of the experiment (several would be better, but let's not be greedy!) in order to make a judgement. Mars represents our first real hope for a second experiment - the sine qua non - for any proper answer for the question of questions.
Stephen Jay Gould
A single currency means a single government, and that single government would be the government whose policies determined every aspect of economic life.
Enoch Powell
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