I can, therefore I am.

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

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

The secret of getting ahead is getting started.

If you're going through hell, keep going.

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

The dog that trots about finds a bone.

Always desire to learn something useful.

By failing to prepare, you are preparing to fail.