Insight: The stereotype of selling is that it relies on information asymmetry (deception). The goal for sales is for the consumer to understand the benfits and value of a product, and communicate the value to other potential customers.
Insight: Information asymmetry can be the source of problems in an organisation.
Reference: Laurence J. Peter: coined the term - "the tendency in most organisation hierarchies, such as that of a corporation, is for every employee to rise in the hierarchy through promotion until they reach a level of respective incompetence."
Insight: In careers people can get stuck in jobs that they are not good at.
Principle: People should continue to do aspects of jobs they are good at, and get paid more over time to do them.