The problem of social organization is how to set up an arrangement under which greed will do the least harm, capitalism is that kind of a system.
Milton FriedmanI start ... from a belief in individual freedom and that derives fundamentally from a belief in the limitations of our knowledge, from a belief ... that nobody can be sure that what he believes is right, is really right ... I'm an imperfect human being who cannot be certain of anything, so what position ... involved the least intolerance on my part? ... The most attractive position ... is putting individual freedom first.
Milton Friedman