Every day confirms his belief of the inconsistency of all human characters, and of the little dependence that can be placed on the appearance of merit or sense.
理论很少被更好的理论推翻，更多的是被失去兴趣的实践者抛弃。
Mathematics is a living subject, constantly evolving with new ideas and discoveries.
Space and light and order. Those are the things that men need just as much as they need bread or a place to sleep.
我们必须听从科学——忽视它只会导致不可逆转的损害。