Two things seemed pretty apparent to me. One was that in order to be a pilot a man had to learn more than any one man ought to learn; and the other was that he must learn it all over again in a different way every 24 hours.
Mark TwainHappiness ain't a thing in itself -it's only a contrast with something that ain't pleasant. And so, as soon as the novelty is over and the force of the contrast dulled, it ain't happiness any longer, and you have to get something fresh.
Mark TwainWe can secure other people's approval, if we do right and try hard; but our own is worth a hundred of it, and no way has been found out of securing that.
Mark Twain