From "The Rule of Four"

"Hope, Paul said to me once, which whispered from Pandora's box only after all the other plagues and sorrows had escaped, is the best and last of all things. Without it, there is only time. And time pushes at our backs like a centrifuge, forcing us outward and away, until it nudges us into oblivion... Like all things in the universe, we are destined from birth to diverge. Time is simply the yardstick of our separation. If we are particles in a sea of distance, exploded from an original whole, then there is a science to our solitude. We are lonely in proportion to our years."