Think for a second about how most first-world education is set up: it’s often about what you know, meaning the quantity of concepts. This is often why students ask “Is this on the test?” They want to be sure about what they know: is it the right mix of what they are supposed to know? Even outside of school, students are often encouraged to read more and pick up new skills. It becomes increasingly about quantity. It can lead to a culture of overscheduled kids and anxious parents.1 Tony Robbins and Tim Ferriss have addressed this in a podcast episode: there are achievement cultures and fulfillment cultures.2 Achievement cultures are focused on quantity of tasks or goals achieved; the number matters more than almost anything else. Fulfillment cultures can be more about personal contentment, growth, happiness, etc. — and less about hitting a specific number. America and many first-world countries are largely achievement cultures, so we focus a good deal on what we know. What if that’s the wrong approach? Why “who you know” matters more What about knowing more people? And what about knowing the right people? Dealing with other human beings is a huge part of what most of us do, whether you work in a call center, sell real estate, or create marketing solutions for small businesses. How we get along with others is often the greatest indicator of success. Reed Hastings, the CEO of Netflix, has even warned other leaders of hiring “the brilliant jerk” — someone who does well on paper with goals and numbers, but has limited likability and alienates teammates.3 The bottom line is that people around you affect you: they can make you happier, healthier, and more successful — or the opposite. Based on the research from Nicholas Christakis at Yale, most of this influence is passive and gradual. You may not even notice it as it’s happening.4 But over time, you become a reflection of those you spend time with. Understanding who is in your immediate network, and whether they’re a good addition or toxic, is important.