一棵树的真正价值是用几十年衡量的，而不是美元。
The true value of a tree is measured in decades, not dollars.
Live as if you were to die tomorrow. Learn as if you were to live forever.
The world is a puzzle, and the pieces are scattered everywhere.
不自律的人是没有自由的。
你绝对必须知道的唯一东西是图书馆的位置。
真相很少是纯粹的，也绝不简单。