“That was one of your favorite themes: that profusion, replication, popularity wasn't necessarily devaluing, and that time itself made all things rare. You loved to savor the present tense and were more conscious than anyone I have ever met that its every constituent is fleeting.”

“Time itself made all things rare.”

“For more than three thousand million years, DNA has been the only replicator worth talking about in the world. But it does not necessarily hold these monopoly rights for all time. Whenever conditions arise in which a new kind of replicator can make copies of itself, the new replicators will tend to take over, and start a new kind of evolution of their own.”

“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.”

“I love you, Kaylee. More than I've ever loved anyone. More than I will ever love anyone. If I could freeze this moment in time and never have to let you go, I would do it without a second thought.”

“What’s painful is that what you had together, all your inside jokes and favorite restaurants and that movie you both loved but everyone else hated—that’s gone, and there’s no replacement for it, you never replicate it, never get to have it ever again…”