This is an era when Noras are leaving one after another. What will happen after you leave? "But logically speaking, Nora may really have only two options: either fall or come back. Because if it is a little bird, it is certainly not free in the cage, and once it comes out of the cage, there will be eagles, cats, and other things outside. Things like that; if you have paralyzed your wings and forgot to fly, there is indeed no way out. The other option is to starve to death, but starving to death is no longer a problem, so it is not a way." - Lu Xun.