Quality is not a fad; it is a philosophy.
Models can lower your risk…….. It reduces the daily aggravation. With old-fashioned stock picking: “One day you feel like a hero. The next day you feel like a goat. Either way, most of the time it’s just luck. “We don’t override the models.
——2004年在南京航空学院上的演讲
数学的力量来自于它的抽象和概括能力,将具体问题转化为普遍真理。
"Illustrating a book is like giving a voice to the characters."