Around the world, Walmart associates feel more comfortable taking risk. They're launching minimum viable products to test and learn from. These have enough function to satisfy early adopters, whose feedback informs future design.

Really pay attention to negative feedback and solicit it, particularly from friends. ... Hardly anyone does that, and it's incredibly helpful.

We all need people who will give us feedback. That's how we improve.

Ask for feedback from people with diverse backgrounds. Each one will tell you one useful thing. If you're at the top of the chain, sometimes people won't give you honest feedback because they're afraid. In this case, disguise yourself, or get feedback from other sources.

I used to think that all my Wings stuff was second-rate stuff, but I began to meet younger kids, not kids from my Beatle generation, who would say, We really love this song.

Sometimes, you can learn more from criticism than you can from flattery.