Planning to write is not writing. Outlining, researching, talking to people about what you're doing, none of that is writing. Writing is writing.
计划写作不是写作。列提纲、做研究、和别人谈论你在做什么，这些都不是写作。写作就是写作。
I never guess. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.
追求数学知识是一段永无止境的旅程，充满了无尽的好奇和惊奇。