It was in this mental disposition, physically very empty, but still nauseated by what he had seen, that he had come upon the Professor. Under these conditions which make for irascibility in a sound, normal man, this meeting was specially unwelcome to Chief Inspector Heat. He had not been thinking of the Professor; he had not been thinking of any individual anarchist at all. The complexion of that case had somehow forced upon him the general idea of the absurdity of things human, which in the abstract is sufficiently annoying to an unphilosophical temperament, and in concrete instances becomes exasperating beyond endurance. At the beginning of his career Chief Inspector Heat had been concerned with the more energetic forms of thieving. He had gained his spurs in that sphere, and naturally enough had kept for it, after his promotion to another department, a feeling not very far removed from affection. Thieving was not a sheer absurdity. It was a form of human industry, perverse indeed, but still an industry exercised in an industrious world; it was work undertaken for the same reason as the work in potteries, in coal mines, in fields, in tool-grinding shops. It was labour, whose practical difference from the other forms of labour consisted in the nature of its risk, which did not lie in ankylosis, or lead poisoning, or fire-damp, or gritty dust, but in what may be briefly defined in its own special phraseology as “Seven years hard.” Chief Inspector Heat was, of course, not insensible to the gravity of moral differences. But neither were the thieves he had been looking after. They submitted to the severe sanctions of a morality familiar to Chief Inspector Heat with a certain resignation.