Albus Dumbledore : Draco, years ago I knew a boy who made all the wrong choices. Please let me help you!
Draco Malfoy : I don't need your help! Don't you understand? I have to do this! I have to kill you... or he's gonna kill me!
Read more Professor Albus Dumbledore Quotes
From: Harry Potter and the Half-Blood Prince (2009)