"The brick walls are there for a reason.

The brick walls are not there to keep us out; the brick walls are there to give us a chance to show how badly we want something. The brick walls are there to stop the people who don't want it badly enough. They are there to stop the OTHER people!" - Randy Pausch

If you've never seen or read "The Last Lecture" you have missed a valuable lesson. Randy was truly an angel on Earth.

Check out Randy's book page: The Last Lecture