We can buy you one of those books they have for little kids 'Timmy Has Two Dads'. Except I don't think they have one called 'Timmy Has Two Dads and One of Them Was Evil'. That part you're just going to have to work through on your own.

A rune, hovering like an angel: a shape like two wings joined by a single bar.

One thing you'll learn as you get older, Simon, is that when people tell you something unpleasant about themselves, it's usually true.

Magic is dangerous- but love is more dangerous still

That's the van? It looks like a rotting banana." This was undeniable - Eric had painted the van a neon shade of yellow, and it was blotched with dings and rust like splotches of decay.

You and Jace – you’re not quite normal, are you? I mean, not normal Shadowhunters. There’s something special about you both. Like the Seelie Queen said. You were experiments.” He smiled at her startled look. “I’m not stupid. I can put these things together. You with your rune powers, and Jace, well…no one could be that annoying without some kind of supernatural assistance.

People aren't born good or bad. Maybe they're born with tendencies either way, but its the way you live your life that matters.