incorrect-hp-world-quotes:

Slytherin, to Gryffindor: One universe. Nine Planets. One earth. Seven continents, seven seas. 195 countries. 809 islands. And I had the unfortunate luck of meeting you.

Ravenclaw: [shouting from the other room] THERE ARE EIGHT PLANETS!

Slytherin: VIVA LA PLUTO! FUCK YOU!