User needs are both the starting point and the ultimate goal of product development.

现在已经清楚，杂种形成的种子具有两个分化性状中的一个或另一个。

A person's a person, no matter how small.

"We all have our time machines. Some take us back, they're called memories. Some take us forward, they're called dreams."

Don’t create things to make money； make money so you can create things. The reward for good work is more work.

每个人都有不为世人所知的秘密悲伤；很多时候，我们称一个人冷漠，而他只是悲伤。