Be gentle to all and stern with yourself.
Be thine own palace, or the world's thy jail.
Know or listen to those who know.
Go for it now. The future is promised to no one.
The wise does at once what the fool does at last.
To be a good loser is to learn how to win.
Well done is better than well said.
Always desire to learn something useful.
You never know what motivates you.
Never complain and never explain.
Maybe nature is fundamentally ugly, chaotic and complicated. But if it's like that, then I want out.