Why would it violate the first amendment to have people quote something they like? Unless they force you to read it: they could plaster the walls with bibles and still not be violating the first amendment. You have heard of free speech and free expression, yes? 
Yeah... I don't believe in it either

Yeah... I don't believe in it either

Please give me a home where cloud buffalo roam
Where the dear and the strangers can play
Where sometimes is heard a discouraging word
But the skies are not stormy all day