"The truth is rarely pure and never simple."
The trouble with most people is that they think with their hopes or fears or wishes rather than with their minds.
最大的智慧在于简单。
适应性是在不断变化的行业中生存的关键。
动物和人类的有目的行为。
Good econometrics is like good carpentry—it's all about using the right tool for the job.