但我们还想要更多，得不到就感到愤怒，心安理得地看到奢侈品变为改善品，在变为必需品 — — 我们已经非常擅长于发明新的奢侈品然后去追求它。
And yet we want more, feel resentful when we do not get it, and are self-aware enough to know that luxuries turn into conveniences, and then into necessities – and that we are very good at inventing new luxuries after which to strive.