"But, unlike money, when you use knowledge or give it away, you don't lose it.'Transferring knowledge anywhere in the world is free and instant. Its value compounds over time faster than money. It can be converted into many things, including things that money can't buy, such as authentic relationships and high levels of subjective well-being. It helps you accomplish your goals faster and better. It's fun to acquire. It makes your brain work better. It expands your vocabulary, making you a better communicator. It helps you think bigger and beyond your circumstances. It puts your life in perspective by essentially helping you live many lives in one life through other people's experiences and wisdom."

— The five hour rule by Michael Simmons