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TWO:We have said that Protagoras was a partisan of Nomos, or convention, against Nature. That was the conservative side of his character. Still, Nomos was not with him what it had been with the older Greeks, an immutable tradition indistinguishable from physical law. It was a human creation, and represented the outcome of inherited experience, admitting always of change for the better. Hence the vast importance which he attributed to education. This, no doubt, was magnifying his own office, for the training of youth was his profession. But, unquestionably, the feelings of his more liberal contemporaries went with him. A generation before, Pindar had spoken scornfully of intellectual culture as a vain attempt to make up for the absence of genius which the gods alone could give. Yet Pindar himself was always careful to dwell on the services rendered by professional trainers to the93 victorious athletes whose praises he sang, and there was really no reason why genius and culture should be permanently dissociated. A Themistocles might decide offhand on the questions brought before him; a Pericles, dealing with much more complex interests, already needed a more careful preparation.A learner should, in fact, consider the application and operative conditions of gearing as one of the main parts of the subject, and the geometry or even the construction of wheels as subsidiary; in this way attention will be directed to that which is most difficult to learn, and a part for which facilities are frequently wanting. Gearing may be classed into five modifications��spur wheels, bevel wheels, tangent wheels, spiral wheels, and chain wheels; the last I include among gearing because the nature of their operation is analogous to tooth wheels, although at first thought chains seem to correspond more to belts than gearing. The motion imparted by chains meshing over the teeth of wheels is positive, and not frictional as with belts; the speed at which such chains may run, with other conditions, correspond to gearing. TWO:It was a long and weary vigil, and when the clock struck midnight Bruce heartily wished himself out of it. It was a strain on the nerves, too, sitting in that dark silent house waiting for something that might not come. Lawrence did not usually display any bulldog qualities, but he sat on grimly now."Well, perhaps not," Maitrank admitted. "But I had them in my possession." TWO:"One never knows," said Lawrence. "But I see you remember. You also remember the marvellous secret of the tuberose scent. For my own purposes I require a little of it, my story demands it. I am talking business now. Give me the little bottle from the Antoinette cabinet in your boudoir, and I will get rid of those men for you." TWO:And what was his answer?