Stephen Hawking accomplished many truly amazing things in his life. One of them was writing “A Brief History of Time,” and another was surviving until age 76.
He was diagnosed with ALS at the age of 21. Most people with his horrible disease live only a few years after their diagnosis. His longevity, as well as his scientific discoveries, astounded much of the world.
Below are links to two articles: In one, Dr. Hawking talks about how humor played a big role in dealing with his disease. The second one has some examples of when this humor was on public display.