Success is not about how much you know, but how much you care.
心理学的任务是将复杂的心理现象还原为最简单的组成部分。
经济模型的价值在于其解释和预测的能力。
Everything that happens once can never happen again. But everything that happens twice will surely happen a third time.
A good mechanic is not merely a man who files and hammers, but one who can originate and perfect.