这个笼子是个实物而已，因而毫无价值。能真正关住我的笼子是社会、时空和万有引力。实际上，我的身份是由牛顿的整个世界观定义的……
This cage is only physical and thus meaningless. my true cage is society and time and space and gravitation. In fact, the entire Newtonian worldview defines my identity...
路德维希，是目前为止最不可能被卖出去的长尾小鹦鹉
Ludwig, so far the most unsellable parakeet