"Perhaps I am. But that's because I've had some inspiring teachers. I'll tell you about one of them. Many years ago, when I worked as a volunteer at Stanford Hospital, I got to know a little girl named Lisa who was suffering from a rare and serious disease. Her only chance of recovery appeared to be a blood transfusion2 from her five-year-old brother, who had miraculously3 survived the same disease and had developed the antibodies needed to combat the illness. The doctor explained the situation to her little brother, and asked the boy if he would be willing to give his blood to his sister. I saw him hesitate for only a moment before taking a deep breath and saying, 'Yes, I'll do it if it will save Lisa.'
"As the transfusion progressed, he lay in a bed next to his sister and smiled, as we all did, seeing the color returning to her cheeks. Then his face grew pale and his smile faded. He looked up at the doctor and asked with a trembling voice, 'Will I start to die right away?'
"Being young, the boy had misunderstood the doctor; he thought he was going to have to give her all his blood.
"Yes, I've learned courage," she added, "because I've had inspiring teacher." --Dan Millman
Questions: 1.Why does Lisa need a blood transfusion? 2.What does the author want to tell us?(答案请在下期每周精读中查找)