我们始终坚持以用户为中心，不断优化产品和服务。

The only thing more painful than being an active forgetter is to be an inert rememberer.

I don't live in the past, I focus on the present and the future.

I don't run from challenges, I run toward them.

解释：河水成冰，不是一日的寒冷所致；积土成为高山，不是须臾的工夫就能完成。

Civilization is a stream with banks. The stream is sometimes filled with blood from people killing, stealing, shouting and doing the things historians usually record, while on the banks, unnoticed, people build homes, make love, raise children, sing songs, write poetry and even whittle statues. The story of civilization is the story of what happened on the banks.