知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 – Baltasar Gracián” “The art of being sensible is definitely the artwork of recognizing what to miss.” – William James “A clever person makes his own decisions, an ignorant male follows general public opinion.” – Chinese Proverb “The best wisdom is in simplicity.” – Indigenous American Proverb https://www.diigo.com/item/pdf/bh9us/ipwd