FORE:To exert a powerful force acting through but a short distance, percussive devices are much more effective and simple than those acting by maintained or direct pressure. A hammer-head may give a blow equal to many tons by its momentum, and absorb the reactive force which is equal to the blow; but if an equal force was to be exerted by screws, levers, or hydraulic apparatus, we can easily see that an abutment would be required to withstand the reactive force, and that such an abutment would require a strength perhaps beyond what ingenuity could devise."3. Grgoire, permanent deputy.
FORE:It has been already mentioned how large a place was given to erotic questions by the literary Platonists of the second century. Even in the school of Plotinus, Platonic love continued to be discussed, sometimes with a freedom which pained and disgusted the master beyond measure.431 His first essay was apparently suggested by a question put to him in the course of some such debate.432 The subject is beauty. In his treatment of it, we find our philosopher at once rising superior to the indecorous frivolities of his predecessors. Physical beauty he declares to be the ideal element in objects, that which they have received from the creative soul, and which the perceptive soul recognises as akin to her own essence. Love is nothing but the excitement and joy occasioned by this discovery. But to understand the truer and higher forms of beauty, we must turn away288 from sensible perceptions, and study it as manifested in wise institutions, virtuous habits, and scientific theories. The passionate enthusiasm excited by the contemplation of such qualities as magnanimity, or justice, or wisdom, or valour can only be explained by assuming that they reveal our inmost nature, showing us what we were destined for, what we originally were, and what we have ceased to be. For we need only enumerate the vices which make a soul hideousinjustice, sensuality, cowardice, and the liketo perceive that they are foreign to her real nature, and are imposed on her by contamination with the principle of all evil, which is matter. To be brave means not to dread death, because death is the separation of the soul from the body. Magnanimity means the neglect of earthly interests. Wisdom means the elevation of our thoughts to a higher world. The soul that virtue has thus released becomes pure reason, and reason is just what constitutes her intrinsic beauty. It is also what alone really exists; without it all the rest of Nature is nothing. Thus foul is opposed to fair, as evil to good and false to true. Once more, as the soul is beautiful by participation in reason, so reason in its turn depends on a still higher principle, the absolute good to which all things aspire, and from which they are derivedthe one source of life, of reason, and of existence. Behind all other loves is the longing for this ultimate good; and in proportion to its superiority over their objects is the intensity of the passion which it inspires, the happiness which its attainment and fruition must bestow. He who would behold this supreme beauty must not seek for it in the fair forms of the external world, for these are but the images and shadows of its glory. It can only be seen with the inward eye, only found in the recesses of our own soul. To comprehend the good we must be good ourselves; or, what is the same thing, we must be ourselves and nothing else. In this process of abstraction, we first arrive at pure reason, and then we say that the ideas289 of reason are what constitutes beauty. But beyond reason is that highest good of which beauty is merely the outward vesture, the source and principle from which beauty springs.
FORE:Cutting processes may be divided into two classes: cylindrical cutting, as in turning, boring, and drilling, to produce circular forms; and plane cutting, as in planing, shaping, slotting and shearing, to produce plane or rectangular forms. Abrading or grinding processes may be applied to forms of any kind.
THREE:The work to be performed consists in cutting away the metal between the teeth of a rack, leaving a perfect outline for the teeth; and as the shape of teeth cannot well be obtained by an adjustment of tools, it must be accomplished by the shape of the tools. The shape of the tools must, therefore, be constantly maintained, [155] and as the cross section of the displaced metal is not too great, it may be assumed that the shape of the tools should be a profile of the whole space between two teeth, and such a space be cut away at one setting or one operation. By the application of certain rules laid down in a former place in reference to cutting various kinds of material, reciprocating or planing tools may be chosen instead of rotary or milling tools.
THREE:Leona Lalage had scarcely returned to her own room when Hetty came out of hers. She had heard the loud knocking at the door, and had instantly guessed who it was. But the strange silence that followed the answering of that summons puzzled her. The whole house was wonderfully still now, a silence that seemed to tell of dark mysteries. She looked over into the hall below. She could not remain here any longer. She would go down into the library and wait there. Those two people were quite capable of murdering her lover as well as Maitrank. She opened the library door, and to her great surprise Bruce stood before her.
