Neal Stephenson said this quote

[The thief-taker] was conspicuous by his age, I should estimate he is in his middle fifties, and by a bearing, I am tempted to call it dignity, wanting in the others. He has a good head of hair, only a bit thin on top, blond going grey, and sea green eyes. He has an excellently carved set of teeth, but displays them rarely. He has a trim figure, unusual in a profession that consists largely of loitering around taverns, but any illusion that he is especially fit is dispelled when he begins to move, for he is a little bit halt, and a little bit lame, stiff in the joints and given to frequent sighs and grimaces that hint at pains internal.