I can, therefore I am.

Either you run the day or the day runs you.

If you think you can do it, you can.

Go for it now. The future is promised to no one.

The secret of getting ahead is getting started.

Begin to be now what you will be hereafter.

The dog that trots about finds a bone.

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

If you can dream it, you can do it.