解释:治理河道,要用疏导的办法使其通畅;治理百姓,要引导百姓使其敢言。
La literatura nos permite vivir mil vidas y sentir mil emociones.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
布莱克-斯科尔斯模型的美妙之处在于它将期权定价问题简化为几个可观察的变量。