The artist must be a philosopher, a poet, and above all, a revolutionary.
向一个人展示他在错误中是一回事,让他掌握真理是另一回事。
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 best way to learn a new programming language is by writing programs in it.