It's always too early to quit.
What you do today can improve all your tomorrows.
Without hard work, nothing grows but weeds.
You never know what motivates you.
Know or listen to those who know.
To be a good loser is to learn how to win.
To know oneself, one should assert oneself.
If you've got a talent, protect it.
If you think you can do it, you can.
The secret of getting ahead is getting started.
I've always regarded nature as the clothing of God.
It's hard for me to think of others because I'm not particularly in sympathy with the music of this century.