理解布萊克-斯科爾斯模型的關鍵在于認識到它是基于對沖以消除風險的理念。
The death of a beautiful woman is, unquestionably, the most poetical topic in the world.
The best films are those that leave you with questions, not answers.
親屬關系的研究,即我們所謂的人類社會的社會解剖學的研究。