“You may accumulate a vast amount of knowledge but it will be of far less value to you than a much smaller amount if you have not thought it over for yourself; because only through ordering what you know by comparing every truth with every other truth can you take complete possession of your knowledge and get it into your power.”

People think good decision-making is about being right all the time. It's not. It's about lowering the cost of being wrong and changing your mind.

When the cost of mistakes is high, we're paralyzed with fear. When the cost of mistakes is low, we can move fast and adapt.

Make mistakes cheap, not rare.