If you stand still, you get swept off. But when you run, you can never really get ahead of the treadmill and cover new terrain – so you never run faster than the speed that is set.
竞争就像是一台跑步机。如果你呆在原地，就会被送下跑步机。但即使你跑起来，你也无法真正跨出跑步机，进入新领域——因此你永远不会比跑步机设定的速度跑得更快。