Crowley: Fruit tree in the middle of a garden with a "Don't Touch" sign. I mean, why not put it on the top of a high mountain? Or on the moon? Makes you wonder what God's really planning.
Aziraphale: Best not to speculate. It's all part of the Great Plan. It's not for us to understand. It's ineffable.
Crowley: The Great Plan's ineffable?
Aziraphale: Exactly. It is beyond understanding and incapable of being put into words.