改变始于意识，但需要行动才能带来真正的改变。
Art is not a thing; it is a way.
The sociological imagination enables its possessor to understand the larger historical scene in terms of its meaning for the inner life and the external career of a variety of individuals.
The road of excess leads to the palace of wisdom.
Never stop learning; the moment you do, you become obsolete.
文学是一种对抗遗忘的武器。
君子不救人，不是没有能力，而是不愿意去做。
品质始于土壤。健康的土地才能长出健康的水果。
"I am not interested in the psychology of characters, but in the psychology of situations."
The best way to learn econometrics is by doing—working with real data and real problems.