We are wired to be caring for the other and generous to one another. We shrivel when we are not able to interact. I mean that is part of the reason why solitary confinement is such a horrendous punishment. We depend on the other in order for us to be fully who we are. (...) The concept of Ubuntu says: A person is a person through other persons.
Desmond Tutu, The Book of Joy: Lasting Happiness in a Changing World
human, human-interaction, unity-of-all-people