Care is the most important thing for life, since to model life we need to care for ourselves, for the others, and for the human institutions. Care is the most important ontological phenomenon because we are what we care for. It is essential to care for life in order to maintain it along time, to make it flourish and to repair the wounds of being-there. This book develops a philosophy of care not only by considering the contemporary literature, but above all by basing the argumentations on the ancient Greek philosophy. Moreover, the argumentations are grounded in a phenomenological analysis of the experience of care.