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.
一个国家的力量在于其人民的团结。
实践可以包含认识,但认识不能代替实践。
Mathematics is the organ with which we comprehend the phenomena of nature.