It's always too early to quit.
To be a good loser is to learn how to win.
Things do not happen. Things are made to happen.
By failing to prepare, you are preparing to fail.
The wise does at once what the fool does at last.
Be thine own palace, or the world's thy jail.
Always desire to learn something useful.
If you can dream it, you can do it.
Never complain and never explain.
If you've got a talent, protect it.
I personally have always found the Unitarian faith a source of comfort and help in my daily life.