种一棵树最好的时间是20年前，其次是现在。

The older I get， the more wisdom I find in the ancient rule of taking first things first—a process which often reduces the most complex human problem to a manageable proportion.

贪婪和对权力的渴望带来了战争和世界上的困扰。

劳动力市场在不断演变，我们的模型应反映这一点。

Innovation is not about doing something completely new, but about doing it better than anyone else.

一本书是作者和读者之间的对话，一种超越时间和空间的对话。

The photograph is literally an emanation of the referent. From a real body, which was there, proceed radiations which ultimately touch me, who am here.