THREE:In the use of hydraulic apparatus for transmitting and applying power, there is, however, this difficulty to be contended with: water is inelastic, and for the performance of irregular duty, there is a loss of power equal to the difference between the duty that a piston may perform and what it does perform; that is, the amount of water, and consequently the amount of power given off, is as the movement and volume of the water, instead of as the work done. The application of hydraulic machinery to the lifting and handling of weights will be further noticed in another place.It has already been observed that the thoughts of Socrates were thrown into shape for and by communication, that they only became definite when brought into vivifying contact with another intelligence. Such was especially the case with his method of ethical dialectic. Instead of tendering his advice in the form of a lecture, as other moralists have at all times been so fond of doing, he sought out some pre-existing sentiment or opinion inconsistent with the conduct of which he disapproved, and then gradually worked round from point to point, until theory and practice were exhibited in immediate contrast. Here, his reasoning, which is sometimes spoken of as exclusively inductive, was strictly syllogistic, being the application of a general law to a particular instance. With the growing emancipation of reason, we may observe a return to the Socratic method of moralisation. Instead of rewards and punishments, which encourage selfish calculation, or examples, which stimulate a mischievous jealousy when they do not create a spirit of servile imitation, the judicious trainer will find his motive power in the pupil��s incipient tendency to form moral judgments, which, when reflected on the155 individual��s own actions, become what we call a conscience. It has been mentioned in the preceding chapter that the celebrated golden rule of justice was already enunciated by Greek moralists in the fourth century B.C. Possibly it may have been first formulated by Socrates. In all cases it occurs in the writings of his disciples, and happily expresses the drift of his entire philosophy. This generalising tendency was, indeed, so natural to a noble Greek, that instances of it occur long before philosophy began. We find it in the famous question of Achilles: ��Did not this whole war begin on account of a woman? Are the Atreidae the only men who love their wives?��99 and in the now not less famous apostrophe to Lycaon, reminding him that an early death is the lot of far worthier men than he100��utterances which come on us with the awful effect of lightning flashes, that illuminate the whole horizon of existence while they paralyse or destroy an individual victim.