Know or listen to those who know.

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

If you're going through hell, keep going.

To know oneself, one should assert oneself.

Begin to be now what you will be hereafter.

The secret of getting ahead is getting started.

It's always too early to quit.

Expect problems and eat them for breakfast.

If you think you can do it, you can.