If you think you can do it, you can.
Who seeks shall find.
The dog that trots about finds a bone.
Without hard work, nothing grows but weeds.
To be a good loser is to learn how to win.
Only the educated are free.
It's always too early to quit.
Know or listen to those who know.
I can, therefore I am.
Begin to be now what you will be hereafter.
Don't be afraid to fail. Don't waste energy trying to cover up failure. Learn from your failures and go on to the next challenge. It's OK to fail. If you're not failing, you're not growing.