Think, too, of the great part that is played by the unpredictable in war: think of it now, before you are actually comitted to war. The longer a war lasts, the more things tend to depend on accidents. Neither you nor we can see into them: we have to abide their outcome in the dark. And when people are entering upon a war they do things the wrong way round. Action comes first, and it is only when they have already suffered that they begin to think.

Author: Thucydides