Chairman Mao said, "You are the sun at 89 o'clock in the morning." I think we are still like caterpillars, hiding under trees and being afraid. We are bent on climbing to the top of the tree and embracing a blue sky. Only by constantly absorbing fresh branches and leaves, discarding dross and thriving can we do this. Surfing the internet is not a bad thing, there are "fresh branches and leaves" and corrupt dross.