The mathematical formalism of quantum mechanics is not just a tool, but a language that reveals the deep structure of nature.
量子力学的数学形式不仅是一种工具，更是一种揭示自然深层结构的语言。
I don't think you can ever do your best. Doing your best is a process of trying to do your best.
Abstraction is the key to managing complexity in software systems.
The great challenge of our time is to build institutions that can manage the complexity of modern societies.