真相很少纯粹，也绝不简单。
The truth is rarely pure and never simple.
Agriculture is the foundation of manufactures, since the productions of nature are the materials of art.
数字革命不仅是经济问题，更是文化和民主问题。
The city is the greatest architectural achievement of humanity.
美国没有永恒的敌人，也没有永恒的朋友，只有永恒的利益。