It is the welfare of society, rather than that of the individual, which is sought to be promoted by a system of popular education. Every part of the social fabric should be fitted to its place, and go into place like the materials in Solomon's temple, without the sound of the hammer; yet a refined civilization cannot be attained without first securing a liberal mental culture of the masses. Nature, as if inspired by a divine instinct, is ever engaged in refining her materials. The laws by which she works are as applicable to mind as to matter. In man we see both mind and matter combined,--two natures, the intellectual and the physical. But in order to learn what we are and what we should be, we must first understand the relations in which we are placed. In attempting to do this, we must study man as well as Nature, and advance step by step, if we would achieve the highest attainments of which we are capable. He only is a man in the true sense whose mental, moral, and physical capacities have been fully developed. To be "twenty-one years of age and six feet high" does not of itself constitute a man. He must attain to something more than this,--he must have the head and the heart and the soul of a man. He must appreciate the true character of his position, and have the moral courage to discharge his duties,--in short, he must live for others as well as for himself, act from generous impulses, and in all he does, yield to "the divinity that stirs within him," if he would comprehend the import of his godlike destiny. The highway to knowledge, though rugged, is equally free and open to all. Whoever will, may enter the temple of Nature, interrogate her face to face, unlock her treasures, appropriate her wealth, and subject her subtle agencies to human service. This the nineteenth century has already done to a considerable extent. Thus far it has been a bold century, and has taken many bold steps. It has "knocked holes through the blind walls" of the last ten centuries, and exposed to daylight the "moles and the bats" of antiquity; and still it demands more light. Such is the spirit of the age,--a demand for naked truth in all its beautiful proportions. Never, until this nineteenth century, have the masses really discovered their mission,--the great fact that they were created to think as well as work, and to govern as well as be governed. And yet the world may be regarded as still in its infancy; nor has the human mind, as compared with its possibilities, emerged from its cradle, or even thrown off its swaddling garments.