Sheryl Sandberg was the one who taught me otherwise. Some years ago, Sheryl started talking to the company about the importance of hard conversations. Whenever we’re feeling tension with our coworkers—they have a habit that irritates us, we disagree about an important decision, or they do something that seems thoughtless—she encouraged us to sit down with the other person and discuss that tension openly. Because if you don’t, nothing will get better, and resentment will only grow.