The Confessions Of Saint Augustine

But how is that future diminished or consumed, which as yet is not? or how that past increased, which is now no longer, save that in the mind which enacteth this, there be three things done? For it expects, it considers, it remembers; that so that which it expecteth, through that which it considereth, passeth into that which it remembereth. Who therefore denieth, that things to come are not as yet? and yet, there is in the mind an expectation of things to come. And who denies past things to be now no longer? and yet is there still in the mind a memory of things past. And who denieth the present time hath no space, because it passeth away in a moment? and yet our consideration continueth, through which that which shall be present proceedeth to become absent. It is not then future time, that is long, for as yet it is not: but a long future, is "a long expectation of the future," nor is it time past, which now is not, that is long; but a long past, is "a long memory of the past."

I am about to repeat a Psalm that I know. Before I begin, my expectation is extended over the whole; but when I have begun, how much soever of it I shall separate off into the past, is extended along my memory; thus the life of this action of mine is divided between my memory as to what I have repeated, and expectation as to what I am about to repeat; but "consideration" is present with me, that through it what was future, may be conveyed over, so as to become past. Which the more it is done again and again, so much the more the expectation being shortened, is the memory enlarged: till the whole expectation be at length exhausted, when that whole action being ended, shall have passed into memory. And this which takes place in the whole Psalm, the same takes place in each several portion of it, and each several syllable; the same holds in that longer action, whereof this Psalm may be part; the same holds in the whole life of man, whereof all the actions of man are parts; the same holds through the whole age of the sons of men, whereof all the lives of men are parts.