Are we not men?

I had a dream from a book I'd read a while ago and went online to find my favorite
passage repeated by some characters

Not to go on All-Fours; that is the Law. Are we not men?
Not to suck up Drink; that is the Law. Are we not men?
Not to eat Fish or Flesh; that is the Law. Are we not men?
Not to claw the Bark of Trees; that is the Law. Are we not men?
Not to chase other Men; that is the Law. Are we not men?

THE ISLAND OF DR MOREAU