艺术的本质功能是道德的。但这是激情、含蓄的道德，不是说教的。这种道德改变的是血液，而不是思想。

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。

文学之美在于它能够超越边界，连接心灵。

When checking references for a job applicant， employers may be reluctant or prohibited from saying anything negative， so leave or send a message that says， “Get back to me if you highly recommend this applicant as super great.” If they don’t reply take that as a negative.