I think it's important to have a good hard failure when you're young... I learned a lot from that. Because it makes you kind of aware of what can happen to you. Because of it, I've never had any fear in my whole life when we've been near collapse and so on. I've never been afraid.

In social networking, user growth is not the goal but a natural result of user satisfaction.

数据驱动决策。

成功的关键是专注于目标，而不是障碍。

Your most unhappy customers are your greatest source of learning.

混凝土不仅仅是材料，它是光的容器。