Think. Wisely.

From John Locke:

To think often and never to retain it so much as one moment is a very useless sort of thinking; and the soul in such a state of thinking does very little if at all excel that of a looking-glass, which constantly receives variety of images or ideas but retains none; they disappear and vanish and there remain on foosteps of them; the looking-glass is never the better for such ideas, nor the soul for such thoughts.

I am, I must admit, often guilty of this. Thinking many thoughts; and losing most of them.