[Harry arched an eyebrow, then nodded.] People and things that are out to feed on or in other ways hurt or displace those who cannot defend themselves against such attacks.

[He smiled wryly.] Not all monsters do monstrous things, and not all monsters are defined by how they look.

Bad wizards are a pain in the ass. We call them warlocks.

[He smiled wider, now.] Because with power comes responsibility. I can do and see things no one else can. If I don't act, then I am just as guilty as those who do those things.