Herein is a wide hiatus between man and the most sagacious of brutes. The brute gains all from personal experience; no generation can build upon the foundation left by a preceding generation--but man can; and it is no objection to allege, that some races remain in a savage state for ages; they possess the power, the capability, the mental constitution, which the brute does not. Besides, they do improve under favourable circumstances. What were the Anglo-Saxon marauders, our own ancestors? Savages. Is England now a savage country? What were the Celtic British in Cæsar's time? Savages. Were they savages when the Romans had held possession of the island for three hundred years? No; they had adopted the arts, the manners, the civilization of their conquerors. How this very fact of the capability of man to give and receive knowledge demonstrates his superiority in creation! It is true that the human intellect is limited, and that there are mysteries into which he cannot penetrate; nor is it needful for his welfare, his improvement, his happiness, his hopes of a joyful immortality, that he should be able to do so. Let him rely on the oracles of God. Mysteries, indeed, surround him. How fluently does he talk about matter, yet he knows nothing about it, excepting what he gains through his senses; and this knowledge is limited to certain qualities, which may be termed primary and secondary. The primary qualities of material bodies are in themselves essentials, namely, solidity and extension. We cannot conceive of matter, without an involvement of these two properties. The secondary qualities of matter are colour, texture, temperature, smell, taste, etc., properties which differ in different bodies, and which are fluctuating, changeable, uncertain. Of these, and other properties of matter, as motion, sound, lightness, or heaviness, etc., our senses are the external tests, though mind is, in reality, the discriminator.