The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.
The greatest enemy of art is the absence of limitations.
要完成伟大的事业，我们不仅要行动，还要梦想；不仅要计划，还要相信。
The best way to learn econometrics is by doing—working with real data and real problems.