一个有趣的事实是，岩石越古老，与今天的岩石差异越大。
A proof is a device for convincing someone else that a mathematical statement is true.
The best leaders are those who listen more than they speak.
A good algorithm is like a well-told story.
The greatest asset a trader has is patience.
The passion for office among members of Congress is very great, if not absolutely disreputable.
