Past, n. That part of Eternity with some small fraction of which we have a slight and regrettable acquaintance. A moving line called the Present parts it from an imaginary period known as the Future. These two grand divisions of Eternity, of which the one is continually effacing the other, are entirely unlike. The one is dark with sorrow and disappointment, the other bright with prosperity and joy.... Yet the Past is the Future of yesterday, the Future is the Past of to-morrow. They are one-the knowledge and the dream.
Ambrose BierceImmortality: A toy which people cry for, And on their knees apply for, Dispute, contend and lie for, And if allowed Would be right proud Eternally to die for.
Ambrose Bierce