Magic causes as much trouble as it cures.

For instance, this new idea that You-Know-Who can kill with a single glance from his eyes. That’s a basilisk, listeners. One simple test: Check whether the thing that’s glaring at you has got legs. If it has, it’s safe to look into its eyes, although if it really is You-Know-Who, that’s still likely to be the last thing you ever do.

Have you any idea how much tyrants fear the people they oppress?

He knew one thing only, and it was beyond fear or reason: He was not going to die crouching here like a child playing hide-and-seek; he was not going to die kneeling at Voldemort’s feet . . . he was going to die upright like his father, and he was going to die trying to defend himself, even if no defense was possible. . . .

Harry, don't go picking a row with Malfoy, don't forget, he's a prefect now, he could make life difficult for you..." "Wow, I wonder what it'd be like to have a difficult life?" said Harry sarcastically.

When people are very damaged, they can often meet the world with a kind of defiance.

If you made a better rat than a human, it’s not much to boast about, Peter.