Language... has created the word 'loneliness' to express the pain of being alone. And it has created the word 'solitude' to express the glory of being alone.
Paul TillichThe vitality that can stand the abyss of meaninglessness is aware of a hidden meaning within the destruction of meaning.
Paul TillichOur search for such [moral] principles can start with . . . the unconditional imperative to acknowledge every person as a person. If we ask for the contents given by this absolute, we find, first, something negative-the command not to treat a person as a thing. This seems little, but it is much. It is the core of the principle of justice.
Paul Tillich