it sometimes does, even if some switchman doesn「t flag it.
即使没有人去摇动它,有时它自己也会动摇的。
people are never satisfied where they are, the switchman said.
人对自己的地方总是不满足的。铁道工说。
the switchman said to the journalists he told his son again and again: 「you won」t be able to do a lot of things when you grow up, but you've gotta be able to do something well.」