A mathematician's work is mostly a solitary pursuit, but it builds on the work of many others.
奋斗是真实的,但回报也是。
无论生产规模如何,质量都不应妥协。
Quantum cryptography doesn't rely on the difficulty of mathematical problems, but on the fundamental laws of physics.
真相很少是纯粹的,也从来不是简单的。
Paper can be permanent if you respect its characteristics and design accordingly.