"And now what? wondered Bond. He shrugged his shoulders to shift the pain of failure—the pain of failure that is so much greater than the pleasure of success. An exit line. He must get out of these two young lives and take his cold heart elsewhere. There must be no regrets. No false sentiment. He must play the role which she expected of him. The tough man of the world. The Secret Agent. The man who was only a silhouette."
Excerpt from Ian Fleming’s Moonraker, 1955