"There will not be lacking, nor will there be more than, one single opportunity to make your days what you want them to be. And if you become one thing rather than another, that will be because in spite of everything you have to choose. Your choices will not negate the possibilities remaining to you, or anything that you will leave behind by the act of choice: but those possibilities will be weakened, attentuated to the degree that today your choice and your destiny will become the same: the coin will no longer have two faces: desire and destiny will be one."

-Carlos Fuentes (The Death of Artemio Cruz)