I can, therefore I am.

If you can dream it, you can do it.

You never know what motivates you.

It's always too early to quit.

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

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

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

What you do today can improve all your tomorrows.

Know or listen to those who know.