• If you can do one thing you thought was utterly impossible, it causes you to rethink your beliefs. Life is both subtler and more complex than some of us like to believe. So if you haven't done so already, review your beliefs and decide which ones you might change now and what you would change those beliefs to.

    Tony Robbins (2008). “Unlimited Power: The New Science Of Personal Achievement”, p.67, Simon and Schuster