From what has been thus drawn together and recapitulated it seems clearly to follow, as was stated in the beginning, that love cannot exist in its purest form and with a genuine ardour, where the parties are, and are felt by each other to be, on an equality; but that in all cases it is requisite there should be a mutual deference and submission, agreeably to the apostolic precept, "Likewise all of you be subject one to the other." There must be room for the imagination to exercise its powers; we must conceive and apprehend a thousand things which we do not actually witness; each party must feel that it stands in need of the other, and without the other cannot be complete; each party must be alike conscious of the power of receiving and conferring benefit; and there must be the anticipation of a distant future, that may every day enhance the good to be imparted and enjoyed, and cause the individuals thus united perpetually to become more sensible of the fortunate event which gave them to each other, and has thus entailed upon each a thousand advantages in which they could otherwise never have shared. ESSAY XVI. OF FRANKNESS AND RESERVE. Animals are divided into the solitary and the are gregarious: the former being only occasionally associated with its mate, and perhaps engaged in the care of its offspring; the latter spending their lives in herds and communities. Man is of this last class or division. Where the animals of any particular species live much in society, it seems requisite that in some degree they should be able to understand each other's purposes, and to act with a certain portion of concert. All other animals are exceedingly limited in their powers of communication. But speech renders that being whom we justly entitle the lord of the creation, capable of a boundless interchange of ideas and intentions. Not only can we communicate to each other substantively our elections and preferences: we can also exhort and persuade, and employ reasons and arguments to convince our fellows, that the choice we have made is also worthy of their adoption. We can express our thoughts, and the various lights and shades, the bleedings, of our thoughts. Language is an instrument capable of being perpetually advanced in copiousness, perspicuity and power. No principle of morality can be more just, than that which teaches us to regard every faculty we possess as a power intrusted to us for the benefit of others as well as of ourselves, and which therefore we are bound to employ in the way which shall best conduce to the general advantage.