Pointless, needless suffering and pain? I don’t suppose it would help if I told you that was the way life is. The good suffer, the evil flourish, and all that is mortal passes away.

Alec would have said he could have benefited from a bit more in the way of constructive cowardice.

You disappear so completely into your head sometimes," he said. "I wish I could follow you.

You know what I am." The words breathed out in an auguished whisper. "I'm part demon, Clary. Part demon. You understood that much, didn't you?" His eyes bored into her like drills. "You saw what Valentine was trying to do. He used demon blood-used it on me before I was even born. I'm part monster. Part everthing I've tried so hard to burn out, to destroy.

It could have been the whole thing where you stabbed him.

When one steals a flying balloon and animates it to fly over Paris, one should, ideally, have some idea how said balloon normally works.

And you should not be out and about in your nightgown. There are Lightwoods wandering these halls.