"... the book about the bird and the bee is natural history. It's an awful lesson to mankind. You think that you are Ann's suitor; that you are the pursuer and she the pursued; that it is your part to woo, to persuade, to prevail, to overcome. Fool: it is you who are the pursued, the marked down quarry, the destined prey. You need not sit looking longingly at the bait through the wires of the trap: the door is open, and will remain so until it shuts behind you for ever."