Two things that Richard Horn, the author of the article (who, ironically, is a professor of physiology at a medical school) said, that really stood out for me:
"I learned that magic comes from inside you, not from technical skills."
"I discovered, especially for magic, that the dreaded diagnosis [of Parkinson's Disease] actually improved my ability to relate personally to my audiences, and that greatly enhanced their enjoyment."
When I read or hear about situations such as have befallen Richard, it heightens my appreciation for the gifts I have been given that are often taken for granted - especially the gift of health. It makes you think twice about complaining or defaulting to what is not right in your life or the world at large, and instead, to focus upon and be grateful for the many blessings bestowed.