I always thought love made you stupid. Made you weak. A bad Shadowhunter. 'To love is to destroy.'I believed that[...]I used to think being a good warrior meant not caring,[...] And then I met you. You were a mundane. Weak. Not a fighter. Never trained[...] Love didn't make you weak, it made you stronger than anyone I'd ever met. And I realized I was the one who was weak.

nothing says 'I love you' like reducing yourself to a smoldering pile of ashes

Women do not think with logic and discretion but with emotions of the heart

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.

Go in peace, James Carstairs.

Because you told me you don't have feelings for me anymore, and you see, that's very akward, because I still have them for you. And I bet you know it.

Don’t take this the wrong way, but you smell like Magnus.