The financial markets generally are unpredictable. So that one has to have different scenarios... The idea that you can actually predict what's going to happen contradicts my way of looking at the market.

当今天下的士人君子,内心果真想行仁义之道,做上等的贤士,上要符合圣王之道,下要符合国家与百姓的利益。

根据问题出现的背景，代数实部可以接受从负无穷到正无穷的所有数值。

追求知识比知识本身更有价值。