Robert A. Heinlein
Never underestimate the power of human stupidity.
More quotes and aphorisms
To be, or not to be, that is the question...Here is the test to find whether your mission...Life is a song — sing it. Life is a game — play it...I remember reading the cruelest, most awful thing...The good thing about not being drop-dead gorgeous...When you jump for joy, beware that no one moves...