《管子·白心》
 当生则生，当死则死 ，这句话是说事物无论在西在东，都遵循它自身的趋向发展。
 当生者生，当死者死 ，言有西有东，各死其乡。
To be born when it should, to die when it should, this sentence means that no matter where things are in the west or the east, they all follow their own tendencies.