When is selfishness the best reason to cooperate?

You know people who always help others for no apparent reasons. You also probably know people who care only about themselves. I tell you the truth about selfishness and cooperation. I also explain why is it that helping others and doing is a clever business strategy. You know that doing good is clever, and this talk will finally give you a rational reason to do good! Learn more about what I do here: www.seeducation.org