Principles are ways of successfully dealing with reality to get what you want out of life.
Ray Dalio, one of the world’s most successful investors and entrepreneurs, cites principles as his key to success.
Three to five smart, conceptual people seeking the right answers in an open-minded way will generally lead to the best answers. It may be tempting to convene a larger group, but having too many people collaborate is counterproductive, even if the members of the larger group are smart and talented. The symbiotic advantages of adding people to a group grow incrementally (2+1=4.25) up to a point; beyond that, adding people actually subtracts from effectiveness. That is because 1) the marginal benefits diminish as the group gets larger (two or three people might be able to cover most of the important perspectives, so adding more people doesn't bring much more) and 2) larger group interactions are less efficient than smaller ones. Of course, what's best in practice depends on the quality of the people and the differences of the perspectives that they bring and how well the group is managed.