Saving lives

（单词翻译:单击）

    At a pre-med (医学院预科）university in St. Louis, we had to take a difficult class in physics. One day the professor was discussing a particularly complicated concept. A student rudely interrupted to ask "Why do we have to learn this stuff?""To save lives." The professor responded quickly and continued the lecture. A few minutes later, the same student spoke¹ up again. "So how does physics save lives?" he persisted. "It usually keeps the idiots like you out of medical school," replied the professor