Never stop learning, because the world never stops changing.

心理学的价值在于其解释生活的力量。

We want to build technology that everybody loves using, and that affects everyone. We want to create beautiful, intuitive services and technologies that are so incredibly useful that people use them twice a day. Like they use a toothbrush. There aren’t that many things people use twice a day.

生活对智者是一场梦，对愚者是一场游戏，对富人是一场喜剧，对穷人是一场悲剧。