"You must learn from the mistakes of others. You can't possibly live long enough to make them all yourself."
-- Sam Levenson
Personally, I don't think there's intelligent life on other planets. Why should other planets be any different from this one?
Never let your sense of morals prevent you from doing what's right.
Nothing is particularly hard if you divide it into small jobs.
"The most wasted of all days is one without laughter."
-- e e cummings