This is crucial because great management typically comes from playing to your strengths rather than from fixing your weaknesses

The Timing Question: Is now the right time to start your particular business?

Use TDD when fixing bugs that can be reproduced using a test beforehand, so that the test can confirm that the bug was actually fixed after the necessary changes have been made.

We can choose how to spend our energy and time. Without choice, there is no point in talking about trade-offs.

Everybody likes to be praised, but when praise is specific, it comes across as sincere – not something the other person may be saying just to make one feel good.

Common wisdom is that you price your product in terms of value to the customer rather than cost to you. That's true. And you can't quantify the value received without prodding their financial worldview.

You can measure leaders by the number and quality of their friends.

The Mom Test: 1. Talk about their life instead of your idea 2. Ask about specifics in the past instead of generics or opinions about the future 3. Talk less and listen more.

To discern what is truly essential we need space to think, time to look and listen, permission to play, wisdom to sleep, and the discipline to apply highly selective criteria to the choices we make.

Brown’s hope is that, with a deeper understanding of emotions, you’ll be able to talk about them more openly and accurately, and thus form deeper connections with the people around you.