But though the inequality visible in the different conditions of life, and the passions interwoven into our nature, (both which have been allotted to us for wise purposes, and without which we could not easily afford a proof of the existence of that which is denominated virtue,) have a tendency to produce vice and wretchedness among us, yet we see in this our constitution what may operate partially as preventives and correctives of them.  If there be a radical propensity in our nature to do that which is wrong, there is on the other hand a counteracting power within it, or an impulse, by means of the action of the Divine Spirit upon our minds, which urges us to do that which is right.  If the voice of temptation, clothed in musical and seducing accents, charms us one way, the voice of holiness, speaking to us from within in a solemn and powerful manner, commands us another.  Does one man obtain a victory over his corrupt affections? an immediate perception of pleasure, like the feeling of a reward divinely conferred upon him, is noticed.—­Does another fall prostrate beneath their power? a painful feeling, and such as pronounces to him the sentence of reproof and punishment, is found to follow.—­If one, by suffering his heart to become hardened, oppresses a fellow-creature, the tear of sympathy starts up in the eye of another, and the latter instantly feels a desire, involuntarily generated, of flying to his relief.  Thus impulses, feelings, and dispositions have been implanted in our nature for the purpose of preventing and rectifying the evils of life.  And as these have operated so as to stimulate some men to lessen them by the exercise of an amiable charity, so they have operated to stimulate others, in various other ways, to the same end.  Hence the philosopher has left moral precepts behind him in favour of benevolence, and the legislator has endeavoured to prevent barbarous practices by the introduction of laws.

In consequence then of these impulses and feelings, by which the pure power in our nature is thus made to act as a check upon the evil part of it, and in consequence of the influence which philosophy and legislative wisdom have had in their respective provinces, there has been always, in all times and countries, a counteracting energy, which has opposed itself more or less to the crimes and miseries of mankind.  But it seems to have been reserved for Christianity to increase this energy, and to give it the widest possible domain.  It was reserved for her, under the same Divine Influence, to give the best views of the nature, and of the present and future condition of man; to afford the best moral precepts, to communicate the most benign stimulus to the heart, to produce the most blameless conduct, and thus to cut off many of the causes of wretchedness, and to heal it wherever it was found.  At her command, wherever she has been duly acknowledged, many of the evils of life have already fled.  The prisoner of war is no longer led into the amphitheatre