金融模型的真正考验不在于它有多复杂,而在于它是否能很好地捕捉经济问题的本质特征。
儿童文学是想象力的基础,创造力的发源地,也是终身热爱阅读的第一步。
You want something. Go get it!
Everymorning I jump out of bed and step on a landmine. The landmine is me. After the explosion, I spent the rest of the day putting the pieces together.