It's always too early to quit.

What you do today can improve all your tomorrows.

To be a good loser is to learn how to win.

The dog that trots about finds a bone.

Know or listen to those who know.

Well done is better than well said.

If you're going through hell, keep going.

The wise does at once what the fool does at last.

Without hard work, nothing grows but weeds.