One of the strongest motives that lead men to art and science， is escape from everyday life with its painful crudity and hopeless dreariness， such men make this cosmos and its construction in the pivot of their emotional life， in ordered to find the peace and the security， which they cannot find in the narrow whirlpool of personal experience.
你唯一的限制就是你相信的限制。
Labor economics is fundamentally about understanding people’s choices and constraints.
在计算学习理论中，挑战不仅仅是学习，而是理解学习是如何可能的。
动力学的方程是完全的，我们无需超越它们。
向前看好像在前面，忽然间又好像在后面……老师善于一步一步地诱导我，用古代的文化典籍开阔我的视野，又用礼法来约束我的行为。