It's always too early to quit.
Who seeks shall find.
If you can dream it, you can do it.
To be a good loser is to learn how to win.
If you've got a talent, protect it.
Be gentle to all and stern with yourself.
Always desire to learn something useful.
By failing to prepare, you are preparing to fail.
Things do not happen. Things are made to happen.
Be thine own palace, or the world's thy jail.
Composers shouldn't think too much - it interferes with their plagiarism.