研究学习的唯一有意义的方法是通过客观测量。
The only meaningful way to study learning is through objective measurement.
对疾病和死亡的所有兴趣，只是对生命兴趣的另一种表达。
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。
Fear is the main source of superstition， and one of the main sources of cruelty. To conquer fear is the beginning of wisdom， in the pursuit of truth as in the endeavour after a worthy manner of life.
The bond market is the ultimate truth-teller.
The challenge in computer graphics is to simulate the complexity of the real world with the simplicity of mathematical models.
诚信是商业中最重要货币。一旦失去它，你就失去了一切。