百度知道 - 信息提示

You know it's a fool who plays it cool. By making his world a little colder. 你知道让自己变得很冷漠是很傻的一件事

there are two main changes comparing with the past .First there are new definitions of what man can achieve 与过去相比，有两个主要的变化。首先，人们对人类能达到的目标有了新的定义