真相很少是纯粹的，也绝不简单。
The truth is rarely pure and never simple.
Never get involved in a land war in Asia.
【释义】善于选择的人能够掌控局面，不善于选择的人则会被局势所控制。
The most important skill in mathematics is the ability to think clearly.
创新不仅仅是创造新事物；它关乎改进已有的事物。
书籍是最安静且最恒久的朋友。