“The subjectivity of privacy can be prolonged and multiplied in a family, it can even become so strong that its weight is felt in the public realm; but this family “world” can never replace the reality rising out of the sum total of aspects presented by one object to a multitude of spectators. Only where things can be seen by many in a variety of aspects without changing their identity, so that those who are gathered around them know they see sameness in utter diversity, can worldly reality truly and reliably appear.”