Emotions are not just reactions; they are also predictors of our future behavior.
"Sometimes, you have to look back in order to understand the things that lie ahead."
除非你相信对世界的知识以及由此产生的力量对人类具有内在价值，否则你不可能成为科学家。
【大意】善于游泳的人容易被淹死，善于骑马的人容易摔下马来，正是因为他们的长处，反而自招祸难。