最具韧性的经济体是那些投资于所有人的经济体。
真相并不总是美丽的,美丽的言辞也不总是真相。
理解布莱克-斯科尔斯模型的关键在于认识到它是基于创建无风险对冲的理念。
In my solitude of heart I feel the sigh of this widowed evening veiled with mist and rain.
No man's knowledge here can go beyond his experience.