Three Towers

The steam engine roars, When a ragged young man was about to enter the world elevator, A person who looked like a security guard stood in front of the young man. The security guard asked: Are you human? Pointing to the sign prohibiting entry to non-personnel, Young man: I am a human being The security guard looked at his watch and said: How to prove it? Young man: How can you prove that when my special mother is talking to you, the person you are talking to is not a human being but an animal? Security guard: Do you have a certificate? How can you prove it if you don't have a certificate? Young man: What certificate? Security: Human Rights Certificate