It's always too early to quit.
To be a good loser is to learn how to win.
To know oneself, one should assert oneself.
Without hard work, nothing grows but weeds.
Always desire to learn something useful.
Know or listen to those who know.
What you do today can improve all your tomorrows.
If you've got a talent, protect it.
You never know what motivates you.
Expect problems and eat them for breakfast.
A love of nature is a consolation against failure.