The market portfolio is efficient if and only if all investors hold mean-variance efficient portfolios.
当且仅当所有投资者都持有均值-方差有效的投资组合时，市场组合才是有效的。
对抗世界的唯一防御是对它的彻底了解。
Purchase the most recent tourist guidebook to your home town or region. You’ll learn a lot by playing the tourist once a year.
我不知道五年后我会在哪里，但我会拼命努力到达那里。
云计算的最大意义在于降低了创新的门槛。
Adaptability is the greatest strength a company can have in today's volatile market.