Paper can be permanent if you respect its characteristics and design accordingly.
如果你尊重纸的特性并相应设计，纸也可以是永久的。
Society is well governed when its people obey the magistrates， and the magistrates obey the law.
The bond market is the ultimate barometer of investor sentiment.
Writing is a way of preserving memory.
及时采拮你的花蕾，旧时光一去不回。今天尚在微笑的花朵，明日便在风中枯萎。
计算机科学中数学的美在于它能够用抽象概念建模和解决现实世界的问题。