If you use that,” he said, “you will be very foolish. No doubt you could learn to operate the Ark. In time. The task would take years, which by your own admission you do not have. I shall work on in your behalf, and forgive you your crude bluster and your threats, but I shall move only when I deem myself ready. I am an ecological engineer. I have my personal and professional integrity. And I must point out that, without my services, you are utterly without hope. Utterly. So, since you know this and I know this, let us dispense with further drama