" When I heard about these lessons, I thought they would be a dreadful waste of my time. I pictured two very silly girls uninterested in any sort of instruction. But that describes neither Miss Gray nor yourself. I should tell you, I used to train younger Shadowhunters in Madrid. And there were quite a few of them who didn’t have the same native ability that you do. You’re a talented student, and it is my pleasure to teach you.”
Sophie felt herself flush scarlet. “You cannot be serious.”
“I am. I was pleasantly surprised the first time I came here and again so the next time and the next. I found that I was looking forward to it. In fact, it would be fair to say that since my return home, I have hated everything in London except these hours with you. "

― Cassandra Clare , Clockwork Prince (The Infernal Devices, #2)