It takes a very unusual mind to undertake the analysis of the obvious. — Alfred North Whitehead. English mathematician and philosopher (1861–1947)
Wisdom alone is true ambition's aim Wisdom the source of virtue, and of fame, Obtained with labor, for mankind employed, And then, when most you share it, best enjoyed.
The only use of a knowledge of the past is to equip us for the present. The present contains all that there is. It is holy ground; for it is the past, and it is the future.
But you can catch yourself entertaining habitually certain ideas and setting others aside; and that, I think, is where our personal destinies are largely decided.