A writer is, after all, only half his book. The other half is the reader and from the reader the writer learns.

I sent my Soul through the Invisible, Some letter of that After-life to spell: And by and by my Soul return'd to me, And answer'd "I Myself am Heav'n and Hell."

The joy of mathematics comes from the act of creation, not just the result.

海洋养育了我们，我们有责任确保以关怀和尊重回馈它。

组织的质量由其服务的质量决定。