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TWO:It is only as a religious philosophy that Neo-Pythagoreanism can interest us here. Considered in this light, the principles of its adherents may be summed up under two heads. First, they taught the separate existence of spirit as opposed to matter. Unlike the Stoics, they distinguished between God and Nature, although they were not agreed as to whether their Supreme Being transcended the world or was immanent in it. This, however, did not interfere with their fundamental contention, for either alternative is consistent with his absolute immateriality. In like manner, the human soul is absolutely independent of the body which it animates; it has existed and will continue to exist for ever. The whole object of ethics, or rather of religion, is to enforce and illustrate this independence, to prevent the soul from becoming attached to its prison-house by indulgence in sensual pleasures, to guard its habitation against defiling contact with the more offensive forms of material impurity. Hence their recommendation of abstinence from wine, from animal food, and from marriage, their provisions for personal cleanliness, their use of linen instead of woollen garments, under the idea that a vegetable is purer than an animal tissue. The second article of the Pythagorean creed is that spirit, being superior to matter, has the power of interfering with and controlling its movements, that, being above space and time, it can be made manifest without any regard to the conditions which they ordinarily impose. To what an extent this belief was carried, is shown by the stories told of Pythagoras, the supposed founder of the school, and Apollonius of Tyana, its still greater representative in the first century of our era. Both were credited with an extraordinary power of working miracles and of predicting future events; but, contrary to the usual custom of mythologers, a larger measure of this power was ascribed to the one who lived in a more advanced stage of civilisation, and the composition of whose biography was separated by a250 comparatively short interval from the events which it professes to relate.389The principal improvements and changes in machine fitting at the present time is in the application of special tools. A lathe, a planing machine, or drilling machine as a standard machine, must be adapted to a certain range of work, but it is evident that if such tools were specially arranged for either the largest or the smallest pieces that come within their capacity, more work could be performed in a given time and consequently at less expense. It is also evident that machine tools must be kept constantly at work in order to be profitable, and when there are not sufficient pieces of one kind to occupy a machine, it must be employed on various kinds of work; but whenever there are sufficient pieces of the same size upon which certain processes of a uniform character are to be performed, there is a gain by having machines constructed to conform as nearly as possible to the requirements of special work, and without reference to any other.