没有正义的自由是暴政。
科学发现的旅程充满了挑战,但也非常值得。
It is one thing to show a man that he is in an error, and another to put him in possession of truth.
向一个人展示他在错误中是一回事,让他掌握真理是另一回事。
我不会让世界决定我的价值。