心理学必须基于可观察的事实，而非推测。
Psychology must be based on observable facts, not speculation.
The only relationship that can make both partners happy is one in which sentimentality has no place and neither partner makes any claim on the life and freedom of the other.
The most important single aspect of software development is to be clear about what you are trying to build.
真正的旅程不在于发现新的风景，而在于用新的眼光去看。