实现明天的唯一限制是我们今天的疑虑。

最重要的是关注用户，其他一切都会随之而来。

我从不回头看，我向前看。

The Internet is the most important single development in the history of human communication since the invention of the printing press.

I didn't start a business to make money, but to change the world.

我们都是自己犹豫的总和。