But while a confidence trickster, a play-actor, or a gambler can return from his performance to the ranks of his admirers, the secret agent enjoys no such relief. For him, deception is first a matter of self-defence. He must protect himself not only from without but from within, and against the most natural of impulses; though he earn a fortune, his role may forbid him the purchase of a razor, though he be erudite, it can befall him to mumble nothing but banalities; though he be an affectionate husband and father, he must under all circumstances withhold himself from those in whom he should
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