Every mental state exists for a purpose; to understand it, we must ask what function it serves in the broader system of behavior.
每种心理状态都有其存在的目的；要理解它，我们必须询问它在更广泛的行为系统中发挥什么功能。
不曾有过一个女儿这样爱过他的父亲，也不曾有一个父亲这样被他女儿爱。
"The art of filmmaking is in the details; it's the small things that make a big difference."
Every human being has an essential, inborn striving toward self-actualization.
我写作是为了找出我的想法。
The supreme happiness of life is the conviction that we are loved.