Stephen william hawking, born on 194218 October, graduated from Oxford University and Trinity College of Cambridge University successively, and obtained a doctorate in philosophy from Cambridge University. In the later stage of college study, I began to suffer from "amyotrophic lateral sclerosis of spinal cord" (motor neuron disease) and paraplegia. He overcame the difficulty of disability and entered gonville and Caius College of Cambridge University as a researcher on 1965. 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.