Many people view their careers as an individual effort, but for the vast majority of professionals that is just not how careers work. People by and large work in teams, and have career success through relationships–by learning from mentors and forming partnerships with colleagues to accomplish goals together.
This isn’t an accident, it’s how human beings are wired. Humans do not function well in isolation. Isolation has been linked to such maladies as high blood pressure, high cholesterol, cigarette smoking, obesity, and lack of exercise. Partnerships, meanwhile, have the opposite effect. According to one of my favorite books, Rodd Wagner and Gale Muller’s The Power of 2: How to Make the Most of Your Partnerships at Work and In Life: