I'm the reason your teacher can't teach.
"Lighting is not about how much light you have, but how you use it."
让自己振作起来的最好方式是尝试让别人振作起来。
The greatest happiness is to know the source of unhappiness.
经济学家的角色既是科学家,又是工程师。
理解变化的唯一方法就是投入其中,随之而动,加入舞蹈。