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THREE:From the time of Socrates on, the majority of Greeks, had they been asked what was the ultimate object of endeavour, or what made life worth living, would have answered, pleasure. But among professional philosophers such a definition of the60 supreme good met with little favour. Seeing very clearly that the standard of conduct must be social, and convinced that it must at the same time include the highest good of the individual, they found it impossible to believe that the two could be reconciled by encouraging each citizen in the unrestricted pursuit of his own private gratifications. Nor had such an idea as the greatest happiness of the greatest number ever risen above their horizon; although, from the necessities of life itself, they unconsciously assumed it in all their political discussions. The desire for pleasure was, however, too powerful a motive to be safely disregarded. Accordingly we find Socrates frequently appealing to it when no other argument was likely to be equally efficacious, Plato striving to make the private satisfaction of his citizens coincide with the demands of public duty, and Aristotle maintaining that this coincidence must spontaneously result from the consolidation of moral habits; the true test of a virtuous disposition being, in his opinion, the pleasure which accompanies its exercise. One of the companions of Socrates, Aristippus the Cyrenaean, a man who had cut himself loose from every political and domestic obligation, and who was remarkable for the versatility with which he adapted himself to the most varying circumstances, went still further. He boldly declared that pleasure was the sole end worth seeking, and on the strength of this doctrine came forward as the founder of a new philosophical school. According to his system, the summum bonum was not the total amount of enjoyment secured in a lifetime, but the greatest single enjoyment that could be secured at any moment; and this principle was associated with an idealistic theory of perception, apparently suggested by Protagoras, but carrying his views much further. Our knowledge, said Aristippus, is strictly limited to phenomena; we are conscious of nothing beyond our own feelings; and we have no right to assume the existence of any objects by which they are caused. The study of natural61 science is therefore waste of time; our whole energies should be devoted to the interests of practical life.123 Thus Greek humanism seemed to have found its appropriate sequel in hedonism, which, as an ethical theory, might quote in its favour both the dictates of immediate feeling and the sanction of public opinion."1. That it is prohibited to be out of doors after seven o'clock (Belgian time) in the evening.

FORE:Nor is it only the personality of Socrates that has been so variously conceived; his philosophy, so far as it can be separated from his life, has equally given occasion to conflicting interpretations, and it has even been denied that he had, properly speaking, any philosophy at all. These divergent presentations of his teaching, if teaching it can be called, begin with the two disciples to whom our knowledge of it is almost entirely due. There is, curiously enough, much the same inner discrepancy between Xenophon��s Memorabilia and those111 Platonic dialogues where Socrates is the principal spokesman, as that which distinguishes the Synoptic from the Johannine Gospels. The one gives us a report certainly authentic, but probably incomplete; the other account is, beyond all doubt, a highly idealised portraiture, but seems to contain some traits directly copied from the original, which may well have escaped a less philosophical observer than Plato. Aristotle also furnishes us with some scanty notices which are of use in deciding between the two rival versions, although we cannot be sure that he had access to any better sources of information than are open to ourselves. By variously combining and reasoning from these data modern critics have produced a third Socrates, who is often little more than the embodiment of their own favourite opinions.

TWO:Inherent or cooling strains in castings is much more intricate than shrinkage: it is, in fact, one of the most uncertain and obscure matters that pattern-makers and moulders have to contend with. Inherent strains may weaken castings, or cause them to break while cooling, or sometimes even after they are finished; and in many kinds of works such strains must be carefully guarded against, both in the preparation of designs and the arrangement of patterns, especially for wheels and pulleys with spokes, and for struts or braces with both ends fixed. The main difficulty resulting from cooling strains, however, is that of castings being warped and sprung; this difficulty is continually present in the foundry and machine-shop, and there is perhaps no problem in the whole range of mechanical manipulation of which there exists more diversity of opinion and practice than of means to prevent the springing of castings. This being the case, an apprentice can hardly hope for much information here. There is no doubt of springing and strains in castings being the result of constant causes that might be fully understood if it were not for the ever-changing conditions which exist in casting, both as to the form of pieces, the temperature and quality of metal, mode of cooling, and so on.

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