" Were a man to be totally deprived of memory, he would be incapable of forming any just opinion; everything about him would seem a chaos: he would have even his own history to ask from every one; and by not knowing how the world went in his absence, he would be at a loss to know how it ought to go on when he recovered, or rather, returned to it again. In like manner, though in a less degree, a too great inattention to past occurrences retards and bewilders our judgment in everything; while, on the contrary, by comparing what is past with what is present, we frequently hit on the true character of both, and become wise with very little trouble. "

― Thomas Paine , The Crisis