As social conditions become more equal, the number of persons increases who, although they are neither rich enough nor powerful enough to exercise any great influence over their fellow creatures, have nevertheless acquired or retained sufficient education & fortune to satisfy their own wants. They owe nothing to any man, they expect nothing from any man; they acquire the habit of always considering themselves as standing alone & they are apt to imagine that their whole destiney is in their own hands. - Alexis de Tocqueville, Democracy in America, 1835
Which American value is described in this excerpt?