Hi, I am David. The story of Stephen Hawking is inspirational to me. Not only because he is the best and most famous physicist in the world, but also because of his perseverance and optimism. Steve Hawking suffered from ALS since he was 27. Owing to this, he can't move, speak, eat or even read as normal person. However, he keeps study: he dedicates most of his time to physics, he reads by some unique machines, etc. Eventually, he becomes one of the most knowledgeable person in this world. His story inspires me to never give up even in the most harsh situation.