I don't have to be perfect. I just have to try my best.
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。
The beauty of mathematics is that it is universal.
领导力的真正衡量标准在于你如何赋能他人实现他们认为不可能的事。