The best leaders don't create followers, they create more leaders.
真正的发现之旅不在于寻找新的风景，而在于拥有新的眼光。
追求数学知识是一段永无止境的旅程；总有更多的东西等待发现和理解。
Grow old along with me! The best is yet to be, the last of life, for which the first was made.
The best books are those that challenge you.