最终，我们记住的不是敌人的话语，而是朋友的沉默。
科学中最重要的就是不要害怕提出问题。
Stories you read when you're the right age never quite leave you. You may forget who wrote them or what the story was called. Sometimes you'll forget precisely what happened, but if a story touches you it will stay with you, haunting the places in your mind that you rarely ever visit.