Further, much of the most disagreeable and laborious work might be done by machinery, as it would be now if it were not cheaper to exploit a helot class. When it became illegal to send small boys up chimneys, chimneys did not cease to be swept: a machine was invented for sweeping them. Coal-cutting might now be done by machinery, instead of by a man lying on his back, picking away over his head at the imminent risk of his own life; but the machine is much dearer than men, so the miners continue to have their chests crushed in by the falling coal. Under Socialism men’s lives and limbs will be more valuable than machinery; and science will be tasked to substitute the one for the other. In truth the extension of machinery is very likely to solve many of the problems connected with differential advantages in employment; and it seems certain that, in the very near future, the skilled worker will not be the man who is able to perform a particular set of operations, but the man who has been trained in the use of machinery. The difference of trade will be in the machine rather than in the man: whether the produce is nails or screws, boots or coats, cloth or silk, paper-folding or type-setting, will depend on the internal arrangements of the mechanism and not on the method of applying the force. What we shall probably do will be to instruct all our youth in the principles of mechanics and in the handling of machines; the machines will be constructed so as to turn the force into the various channels required to produce the various articles; and the skilled workman will be the skilled _mechanic_, not the skilled printer or bootmaker. At the present time a few hours’ or a few days’ study will make the trained mechanician master of any machine you can place before him. The line of progress is to substitute machines for men in every department of production: let the brain plan, guide, control; but let iron and steel, steam and electricity, that do not tire and cannot be brutalised, do the whole of the heavy toil that exhausts human frames to-day. There is not the slightest reason to suppose that we are at the end of an inventive era. Rather are we only just beginning to grope after the uses of electricity: and machinery has before it possibilities almost undreamed of now, the men produced by our system being too rough-handed for the manipulation of delicate and complicated contrivances. I suggest this only as a probable simplification of balancing the supply and demand in various forms of labor in the future: our immediate method of regulation must be the equalising of advantages in them.