Or perhaps in Slytherin
You'll make your real friends,
Those cunning folk use any means
To achieve their ends.
Shrewd Slytherin from fen.
And most power-hungry Slytherin
Loved those of great ambition
Said Slytherin "We'll teach just those
Whoser ancestry is purest
For instance, Slytherin
Took only pure-blood wizards
Of great cunning, just like him.