Know or listen to those who know.

If you think you can do it, you can.

It's always too early to quit.

Well done is better than well said.

Be gentle to all and stern with yourself.

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

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

The most effective way to do it, is to do it.

The dog that trots about finds a bone.