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FORE:

FORE:5. Every part laid down has something to govern it that may be termed a "base"��some condition of function or position which, if understood, will suggest size, shape, and relation to other parts. By searching after a base for each and every part and detail, the draughtsman proceeds upon a regular system, continually maintaining a test of what is done. Every wheel, shaft, screw or piece of framing should be made with a clear view of the functions it has to fill, and there are, as before said, always reasons why such parts should be of a certain size, have such a speed of movement, or a certain amount of bearing surface, and so on. These reasons or conditions may be classed as expedient, important, or essential, and must be estimated accordingly. As claimed at the beginning, the designs of machines can only in a limited degree be determined by mathematical data. Leaving out all considerations of machine operation with which books have scarcely attempted to deal, we have only to refer to the element of strains to verify the general truth of the proposition.

FORE:Again, the spiritualism taught by Plato and Aristotle alike��by the disciple, indeed, with even more distinctness than by the master��was so entirely inconsistent with the common belief of antiquity as to remain a dead letter for nearly six centuries��that is, until the time of Plotinus. The difference between body and mind was recognised by every school, but only as the difference between solid and gaseous matter is recognised by us; while the antithesis between conscious and unconscious existence, with all its momentous consequences, was recognised by none. The old hypothesis had to be thoroughly thought out before its insufficiency could be completely and irrevocably confessed.Lawrence crossed and opened the street door. Prout stood before him.