主要的义务规则是那些要求或禁止某些行为的规则。
Love is a force that allows us to find light in the darkest moments.
The best ideas come from the intersection of art and science.
The key to successful investing is to have a strong stomach.
世间许多事情看似结束实则未了，不如顺其自然不再追究。
The true artist will let his wife starve, his children go barefoot, his mother drudge for his living at seventy, sooner than work at anything but his art.
Fame is not the goal. The goal is the art.
数学不是沿着一条清理干净的高速公路小心翼翼地行进，而是一次进入陌生荒野的旅程，探险者常常会迷路。
The core of social products is to connect people, not simply transmit information.
积极心理学既关注弱点也关注优势，既对修复最坏的事情感兴趣，也对建立生活中最好的事情感兴趣。
"The best way to find yourself is to lose yourself in the service of others."