In the later period of college study, Hawking suffered from Luger's disease (amyotrophic lateral sclerosis), lost his language ability and was paralyzed in 1985, and was confined in a wheelchair for 20 years. However, he was physically disabled and turned it into an advantage, overcoming his disability and becoming a supernova in the international physics community. During this period, he founded the famous theory that the beginning of the universe is "a point of infinite density" on the study of the origin of the universe. He can't write or even slur his speech, and the only tool to express his thoughts is a computer speech synthesizer. He used a few movable fingers to manipulate a special mouse to select letters and words on the computer screen to make sentences, and then played the sound through the computer. Usually it takes 5 or 6 minutes to make a sentence, and it takes 10 day to synthesize an hour of recorded speech. In this way, he wrote a popular science book A Brief History of Time in 1988, which surpassed the theory of relativity, quantum mechanics and the Big Bang and entered the "geometric dance" to create the universe. Although he is so helpless in a wheelchair, his thoughts have traveled brilliantly to the vast space and time. A Brief History of Time is an excellent astronomical popular science novel. The author's imagination is rich, his ideas are wonderful, his language is beautiful and his words are meticulous, which is even more surprising. The outside world, the future changes are so magical and wonderful. This book has a cumulative circulation of 25 million copies and has been translated into nearly 40 languages. His other works include A Brief History of Time, Hawking Lecture-Black Hole, baby universes and Others, The Nature of Time and Space, The Charm of the Future, The Universe in the Shell and so on, which have created one scientific miracle after another.
Hawking's charm lies not only in his legendary physical genius, but also in his convincing life force. His constant pursuit of scientific spirit and brave and tenacious personality strength deeply attracted everyone who knew him.