He fully believed in his courage, his intelligence and his authority on profound subjects of science. He did not lose his hopes, even when he was suffering from the dreaded ALS disease. He believed that his life was not different from other people. He tried his best and lived a normal life like other people. He did not think about his sufferings or regret the things that prevented him from doing the things he hoped. His optimism helped him to fulfill his hopes and goals.
