One of the greatest sources of problems in our society arises from people having loads of wrong theories in their heads - often theories that are critical of others - that they won't test by speaking to the relevant people about them. Instead, they talk behind people's backs, which leads to pervasive misinformation.
Ray DalioI have found that by looking at what is rewarded and punished, and why, universally - i.e., in nature as well as in humanity - I have been able to learn more about what is "good" and "bad" than by listening to most people's views about good and bad.
Ray DalioFor every mistake that you learn from you will save thousands of similar mistakes in the future, so if you treat mistakes as learning opportunities that yield rapid improvements you should be excited by them. But if you treat them as bad things, you will make yourself and others miserable, and you won't grow.
Ray Dalio