Options are often an overlooked form of value — flexibility is one of the Three Universal Currencies (discussed later). Find a way to give people mor… - Josh Kaufman

people assume that they need to attend business school to learn how to build a successful business or advance in their career. That’s simply not true.

raising your prices can increase demand by appealing to a more attractive type of customer. Automobiles are a classic example of this type of price sensitivity: some cars are desirable because they’re expensive. The typical customer who purchases a Bentley Continental GT is very different from the type of customer who purchases a Toyota Camry.

Dunbar’s number” is a theoretical cognitive limit on the number of stable social relationships humans can maintain at one time. According to Robin Dunbar, a British anthropologist, humans have the cognitive capacity to keep track of somewhere around 150 close personal connections. Beyond this limited circle, we start treating people less like individuals and more like objects, and groups of people beyond this limit are likely to splinter off into subgroups over time.