Good design

Despite hundreds of features, the navigation bar at the bottom of the WeChat screen is four icons: Chat, Contacts, Discover, Me. Zhang: “I told the team to establish a rule that WeChat shall always have a four-icon bar, and never add anything to it.”

We learned the hard way that new products are hard enough to figure out, and we should make as many things as familiar as possible. Again, life and new products are hard enough. When you can use a familiar term instead of being original, do so. Never opt for a solution that is more creative but less effective.

It doesn’t matter how many times I have to click, as long as each click is a mindless, unambiguous choice.

He is quoted as stating that "Indifference towards people and the reality in which they live is actually the one and only cardinal sin in design.