语言中最危险的短语是:“我们一直都是这样做的。”
The most dangerous phrase in the language is, 'We've always done it this way.'
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。
Literature is the exploration of the human condition.
"Every saint has a past, and every sinner has a future."