Amongst the matter we behold, some is constantly disposed to unite, whilst other is incapable of union; that which is suitable to unite, forms combinations, more or less intimate, possessing more or less durability: that is to say, with more or less capacity to preserve their union, to resist dissolution. Those bodies which are called SOLIDS, receive into their composition a great number of homogeneous, similar, and analogous particles, disposed to unite themselves with energies conspiring or tending to the same point. The primitive beings, or elements of bodies, have need of supports, of props; that is to say, of the presence of each other, for the purpose of preserving themselves; of acquiring consistence or solidity: a truth, which applies with equal uniformity to what is called _physical_, as to what is termed _moral_. It is upon this disposition in matter and bodies, with relation to each other, that is founded those modes of action which natural philosophers designate by the terms _attraction, repulsion, sympathy, antipathy, affinities, relations_; that moralists describe under the names of _love, hatred, friendship, aversion_. Man, like all the beings in nature, experiences the impulse of attraction and repulsion; the motion excited in him differing from that of other beings, only, because it is more concealed, and frequently so hidden, that neither the causes which excite it, nor their mode of action are known. This system of attraction and repulsion is very ancient, although it required a NEWTON to develop it. That love, to which the ancients attributed the unfolding, or disentanglement of chaos, appears to have been nothing more than a personification of the principle of attraction. All their allegories and fables upon chaos, evidently indicate nothing more than the accord or union that exists between analogous and homogeneous substances; from whence resulted the existence of the universe: whilst discord or repulsion, which they called SOIS, was the cause of dissolution, confusion, and disorder; there can scarcely remain a doubt, but this was the origin of the doctrines of the TWO PRINCIPLES. According to DIOGENES LAERTIUS, the philosopher, EMPEDOCLES, asserted, that "_there is a kind of affection by which the elements unite themselves; and a sort of discord, by which they separate or remove themselves._"