"Life is a lot like chess," he said.

"All a matter of choices. Every move you face choices, and every choice leads to different variations. It branches and then branches again, and sometimes the variation you pick isn't as good as it looked, isn't sound at all. But you don't know that until your game is over."

(Unsound Variations)

Oh, to be sure, there is much we do not understand. The years pass in their hundreds and their thousands, and what does any man see of life but a few summers, a few winters? We look at mountains and call them eternal, and so they seem … but in the course of time, mountains rise and fall, rivers change their courses, stars fall from the sky, and great cities sink beneath the sea. Even gods die, we think. Everything changes.