“I forgot that's what gets you all hot and bothered, Jace, girls killing things.""I like anyone killing things, especially me." he said with a smile.”
“You look happy," he said to Clary. He swiveled his gaze to Jace. "And a good thing for you that she does."Jace raised an eyebrow. "Is this the part where you tell me that if I hurt her, you'll kill me?""No," said Simon, "If you hurt Clary, she's quite capable of killing you herself. Possibly with a variety of weapons."Jace looked pleased by the thought.”
“I don't like killing a girl," the Spaniard said."God does it all the time; if it doesn't bother Him, don't let it worry you.”
“Because it was the right thing?""Oh shit, I hope not.""Afraid of becoming noble?" he asked, his eyes twinkling."That too. But basically, that's the worst reason I can think of for killing. 'That its the right thing to do'. You kill out of outrage or fury or to keep from dying or something like it, that's fine. Hell, kill them rather than bother with them - or be bothered by them. But if you're killing them because 'its the right thing to do', its only the right thing because you've done so many wrong things up until then to make that spot. It's not the right thing to do. It's the best of the last of your choices.""That's the longest I've ever heard you talk at one time.""That's because you never ask me about my hair.”
“It's a secret code," said Calvin. "Girls are not not like boys. If a boy wants to kill you, he says 'I'm going to kill you.' If a girl wants to kill you, she says, 'We need to talk.' That's the code."I gasped. "Has a girl ever wanted to talk to you?" I asked. "Yup," said Calvin."How come you're still alive?" I asked."I vomited," said Calvin.”
“Killing Japanese didn’t bother me at that time. It was getting the war over with that bothered me. So I wasn’t worried particularly about how many people we killed in getting the job done… . All war is immoral, and if you let it bother you, you’re not a good soldier.”