The philosophy of Keely sets forth the universal ether (denied by scientists in the last century to suit their views of the celestial spaces, which they declared to be a vacuum) as the medium by which our lives are included in God's life; demonstrating how it is that we live because He lives, and shall live as long as He exists: how our being is comprised in His, so that if we could suppose the divine life to come to an end, ours would terminate with it as surely--to compare great things with small--as a stream would cease to flow when its fountain is dried up; teaching that our existence may be distinct, but never separate from His, and that in the hidden depth of the soul there is somewhere a point where our individual being comes in contact with God, and is identified with the infinite life. "If extreme vicissitudes of belief on the part of men of science are evidence of uncertainty, it may be affirmed that, of all kinds of knowledge, none is more uncertain than science." The existence of the universal ether is now affirmed again, and must be affirmed, as one of the most elementary facts in physical science. Sir J. F. Herschel asserts that, supposing the ether to be analogous to other elastic media, an amount of it equal in quantity of matter to that which is contained in a cubic inch of air (which weighs about one-third of a grain), if enclosed in a cube of one inch in the side, would exert a bursting power of upwards of seventeen billions of pounds on each side of the cube, while common air exerts only fifteen pounds. It should not, therefore, be surprising to those who have witnessed the manifestations of etheric force, as exhibited by Keely in producing a pressure ranging from 8000 to 30,000 pounds to the square inch, when modern scientists support Herschel's views, as they do, unhesitatingly; rather should they be surprised at the marvellous perseverance which has kept Keely, in the face of every discouragement, true to his inspired mission; conquering every difficulty, surmounting every obstacle, and turning his mistakes into stepping-stones which have helped him to attain the goal he has, from the start, aimed at reaching--viz. the utilizing in mechanics of the power he discovered many years ago. Before the grandeur and glory of such an attainment, all things had to give way. Like a General who sees the fortress looming up in the distance which he must take to complete his victory, his horse's hoofs trampling the dead and dying in his path, so has this discoverer and inventor been unmindful of all that lay between him and his goal. Taking for the key-note of his experiments, in applying inter-molecular vapour to the running of an engine, that all the movements of elastic elements are rhythmical, he has had problems to solve which needed the full measure of inspiration he has received before he could attain that degree of success which he has now reached.