If you don’t want to buy it, don’t sell it.

If you don’t want to use it, don’t build it.

If you don’t want to see it, don’t share it.

If you don’t want to hear it, don’t say it.

(Yes, you can do things for the purpose of helping others solve a problem. But if you can’t connect with the problem or feel the need for the solution yourself, maybe you aren’t the best person to do this work.

Problems are plentiful. Your motivation and empathy are scarce. Optimize for the scarce and unique. Optimize for you.

Your problems aren’t unique. Your solutions can help.)