I can, therefore I am.

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

Begin to be now what you will be hereafter.

It's always too early to quit.

If you're going through hell, keep going.

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

Know or listen to those who know.

If you can dream it, you can do it.

The dog that trots about finds a bone.