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 BierceUBIQUITY, n. The gift or power of being in all places at one time, but not in all places at all times, which is omnipresence, an attribute of God and the luminiferous ether only.
Ambrose Bierce