Some minds are made of blotting-paper: you can write nothing on them distinctly. They swallow the ink, and you find a large spot. – Augustus William Hare and Julius Charles Hare, Guesses at Truth, by Two Brothers
You have to be there not for the fame and glory and recognition and being a page in a history book, but you have to be there because you believe your talent and ability can be applied effectively to operation of the spacecraft. – Alan Shepard