剑鞘保护剑的锋利，自己却满足於它自己的迟钝。
The seabbard is content to be dull when it protects the keenness of the word.
三种激情，简单但无比强烈，支配着我的生活：对爱的渴望，对知识的追求，以及对人类苦难的无法忍受的怜悯。
The utility of an idea determines its place in mental life.
In times of uncertainty, clarity of purpose becomes even more critical.
伟大的工程以你不理解的方式解决你未曾意识到的问题。
The greatest predictor of a novel's quality is the novelist's willingness to confront the unlovely truth about himself or herself.