What feature of society has not changed in the phantasmagoria of these wonderful lustres? Each decade has made a fool of the one which went before it. Whether in the region of extended observation and experiment, or in that of subtle and profound investigation, human effort has seemed in this time to put itself at compound interest, working at once with matters infinitely little and with matters infinitely great, and surely introducing mankind to a higher plane of comfort and co-operation than has been reached in anterior ages. While the mechanism of life has thus been brought much nearer to perfection by the labor of our age, the principles of life remain such as they have always been. Pile luxury as high as you will, health is better, and the body of a well-fed and not over-worked ploughman is, nine times out of ten, a better possession than the body of a man of fortune, especially if he be at the same time a man of pleasure. Marshal and gild the pomp of circumstance, and do it homage with bated breath, character remains the true majesty, honor and intelligence its prime ministers. Money can help people to education, by paying for the support of those who can give it. But money cannot excuse its possessor from the smallest of the mental operations through which, if at all, a man comes to know what, as a man, he should know. The great _desiderata_ of humanity still remain these: to preserve the integrity of nature, the purity of sentiment, and the coherence of thought. The great extension of educational opportunities which we see to-day should make the attainment of these objects easier than in ages of less instruction. But while the pursuit of them is ever normal to the human race, the inherent difficulties of their attainment remain undiminished. Without self-discipline and self-sacrifice, no man to-day attains true education, or the dignity of true manhood. For here comes in the terrible fact of man's freedom as a moral agent. Could our age possess and administer the powers of the universe to its heart's content, in that heart would yet rest the issues of its life and of its death. The period of which I have to speak has certainly witnessed great improvements in the theory of hygiene. The old heroic treatment of diseases has nearly disappeared. The nauseous draughts, the blood-letting and blisters, have given place to moderate medication, the choice of climate and the regulation of diet. Women have been admitted as copartners with men in the guardianship of the public health. Athletic sports help the student to fresh blood and efficient muscle, without which the brain sickens and perishes.