 Friendships are also important parts of our childhood and adult experience. Without them, we struggle to discover, shape, and pursue our ideas of what constitutes a good life. But, again, friendships can take many forms for many reasons, not all of which are grounded in mutual affection and convivial warmth (Aristotle, Nicomachean Ethics, Book VIII). Friendships can be rooted in mutual advantage, status, and convenience.