Children need reciprocity from their caregivers; otherwise, they learn helplessness, that their actions have no effect. If a baby could put their experience into words they may think, ‘If I cannot affect you, then I do not exist.

Every deed done to improve the lot of another person. Even the small ones.

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.

Experts, on the other hand, have internalised the necessary knowledge so they don’t have to actively remember rules or think consciously about their choices. They have acquired enough experience in various situations to be able to rely on their intuition to know what to do in which kind of situation.

Buy shares when the stock price is at or below the earnings line, and not when the price line diverges into the danger zone, way above the earnings line.

When you accept that tails drive everything in business, investing, and finance you realize that it’s normal for lots of things to go wrong, break, fail, and fall.

Leadership is not a destination—it is a long journey with many stops along the way.

What sets experts apart from everyone else is the quality and quantity of their mental representations.

Deep down, we already know what to do in most situations, but fear and self-doubt cloud our judgment.

The slip-box is as simple as it gets. Read with a pen in your hand, take smart notes and make connections between them. Ideas will come by themselves and your writing will develop from there.