音乐是唯一让我觉得有意义的事情。

积极心理学不是一种奢侈品；它是美好生活的必需品。

Behavior is determined by the current stimulus situation and past reinforcement history.

"Life is tough, my darling, but so are you."

在计算机科学领域，最深刻的发现往往来自于最简单的观察。