The more we learn about the universe, the more we realize how much we don't know.
创造力需要勇气。
时间旅行的难题在于，你无法前往自己不存在的地方。
How often do we tell our own life story? How often do we adjust, embellish, make sly cuts? And the longer life goes on, the fewer are those around to challenge our account, to remind us that our life is not our life, merely the story we have told about our life.