I can, therefore I am.

What you do today can improve all your tomorrows.

Always desire to learn something useful.

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

Things do not happen. Things are made to happen.

If you think you can do it, you can.

By failing to prepare, you are preparing to fail.

Never complain and never explain.

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