" The sword kills,” Baru recited, trying to remember the Handbook of Manumission, its arguments for revolutionary zeal. “But the arm moves the sword. Is the arm to blame for murder? No. The mind moves the arm. Is the mind to blame? No. The mind has sworn an oath to duty, and that duty moves the mind, as written by the Throne. So it is that a servant of the Throne is blameless. "

― Seth Dickinson , The Traitor Baru Cormorant (The Masquerade, #1)