Harry was just thinking that all he needed was for Dumbledore's pet bird to die while he was all alone in the office with it, when the bird burst into flames.

there is plenty to be learned even from a bad teacher: what not to do, how not to be

You can choose, you can go one of two ways. You can be the person I probably admire more and say 'well I don't care and I'll continue not to bother to brush my hair.' Or you can be a weak-willed person like me and think 'oh I'd better get my act together. And maybe my mother was right and I do need to put my hair back and tidy myself up a bit.' So I did tidy myself up a bit. But I do often resent the amount of time that it takes to pull yourself together to go on TV, I really do. If I sound bitter, then that accurately reflects how I feel about the subject.

But as he reached the ground and sprinted towards the dais, Lupin grabbed Harry around the chest, holding him back. There's nothing you can do, Harry -' Get him, save him, he's only just gone through!' - it's too late, Harry.' We can still reach him -' Harry struggled hard and viciously, but Lupin would not let go... There's nothing you can do, Harry...nothing...he's gone.

You look in excellent health to me, Potter, so you will excuse me if I don't let you off homework today. I assure you that if you do die, you need not hand it in.

I am a wizard, not a baboon brandishing a stick.

Christmas was coming. One morning in mid-December, Hogwarts woke to find itself covered in several feet of snow. The lake froze solid and the Weasley twins were punished for bewitching several snowballs so that they followed Quirrell around, bouncing off the back of his turban.