It's always too early to quit.

After a storm comes a calm.

By failing to prepare, you are preparing to fail.

If you think you can do it, you can.

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

Be thine own palace, or the world's thy jail.

You never know what motivates you.

Know or listen to those who know.

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