Peragrine: "Stirling. It's a perfectly fine plan."
Stirling: "No. No, it isn't."
Peragrine: "You don't just get to say no."
Stirling: "This plan involves me! I get to say no! No."
Peragrine: "Stirling-"
Stirling: "Let me introduce you to my good friend No."
Peragrine: "Maybe we can compromise."
Stirling: "No."
Peragrine: "STIRLING."
Stirling: ""No" is a magical word. Here's how it goes. You say "Stirling, I have an insane, suicidal plan. Would you like to help me carry it out?" And I say, "why, no.""
Source: The Mortal Instruments.