Why do philosophers infer, with the greatest certainty, that the moon is kept in its orbit by the same force of gravity, that makes bodies fall near the surface of the earth, but because these effects are, upon computation, found similar and equal? And must not this argument bring as strong conviction, in moral as in natural disquisitions?

To prove, by any long detail, that all the qualities, useful to the possessor, are approved of, and the contrary censured, would be superfluous. The least reflection on what is every day experienced in life, will be sufficient. We shall only mention a few instances, in order to remove, if possible, all doubt and hesitation.

The quality, the most necessary for the execution of any useful enterprise, is discretion; by which we carry on a safe intercourse with others, give due attention to our own and to their character, weigh each circumstance of the business which we undertake, and employ the surest and safest means for the attainment of any end or purpose. To a Cromwell, perhaps, or a De Retz, discretion may appear an alderman-like virtue, as Dr. Swift calls it; and being incompatible with those vast designs, to which their courage and ambition prompted them, it might really, in them, be a fault or imperfection. But in the conduct of ordinary life, no virtue is more requisite, not only to obtain success, but to avoid the most fatal miscarriages and disappointments. The greatest parts without it, as observed by an elegant writer, may be fatal to their owner; as Polyphemus, deprived of his eye, was only the more exposed, on account of his enormous strength and stature.

The best character, indeed, were it not rather too perfect for human nature, is that which is not swayed by temper of any kind; but alternately employs enterprise and caution, as each is useful to the particular purpose intended. Such is the excellence which St. Evremond ascribes to Mareschal Turenne, who displayed every campaign, as he grew older, more temerity in his military enterprises; and being now, from long experience, perfectly acquainted with every incident in war, he advanced with greater firmness and security, in a road so well known to him. Fabius, says Machiavel, was cautious; Scipio enterprising: And both succeeded, because the situation of the Roman affairs, during the command of each, was peculiarly adapted to his genius; but both would have failed, had these situations been reversed. He is happy, whose circumstances suit his temper; but he is more excellent, who can suit his temper to any circumstances.

What need is there to display the praises of industry, and to extol its advantages, in the acquisition of power and riches, or in raising what we call a FORTUNE in the world? The tortoise, according to the fable, by his perseverance, gained the race of the hare, though possessed of much superior swiftness. A man's time, when well husbanded, is like a cultivated field, of which a few acres produce more of what is useful to life, than extensive provinces, even of the richest soil, when over-run with weeds and brambles.

But all prospect of success in life, or even of tolerable subsistence, must fail, where a reasonable frugality is wanting. The heap, instead of increasing, diminishes daily, and leaves its possessor so much more unhappy, as, not having been able to confine his expences to a large revenue, he will still less be able to live contentedly on a small one. The souls of men, according to Plato [Footnote: Phaedo.], inflamed with impure appetites, and losing the body, which alone afforded means of satisfaction, hover about the earth, and haunt the places, where their bodies are deposited; possessed with a longing desire to recover the lost organs of sensation. So may we see worthless prodigals, having consumed their fortune in wild debauches, thrusting themselves into every plentiful table, and every party of pleasure, hated even by the vicious, and despised even by fools.

The one extreme of frugality is avarice, which, as it both deprives a man of all use of his riches, and checks hospitality and every social enjoyment, is justly censured on a double account. PRODIGALITY, the other extreme, is commonly more hurtful to a man himself; and each of these extremes is blamed above the other, according to the temper of the person who censures, and according to his greater or less sensibility to pleasure, either social or sensual.

Qualities often derive their merit from complicated sources. Honesty, fidelity, truth, are praised for their immediate tendency to promote the interests of society; but after those virtues are once established upon this foundation, they are also considered as advantageous to the person himself, and as the source of that trust and confidence, which can alone give a man any consideration in life. One becomes contemptible, no less than odious, when he forgets the duty, which, in this particular, he owes to himself as well as to society.

Perhaps, this consideration is one CHIEF source of the high blame, which is thrown on any instance of failure among women in point of CHASTITY. The greatest regard, which can be acquired by that sex, is derived from their fidelity; and a woman becomes cheap and vulgar, loses her rank, and is exposed to every insult, who is deficient in this particular. The smallest failure is here sufficient to blast her character. A female has so many opportunities of secretly indulging these appetites, that nothing can give us security but her absolute modesty and reserve; and where a breach is once made, it can scarcely ever be fully repaired. If a man behave with cowardice on one occasion, a contrary conduct reinstates him in his character. But by what action can a woman, whose behaviour has once been dissolute, be able to assure us, that she has formed better resolutions, and has self-command enough to carry them into execution?

All men, it is allowed, are equally desirous of happiness; but few are successful in the pursuit: One considerable cause is the want of strength of mind, which might enable them to resist the temptation of present ease or pleasure, and carry them forward in the search of more distant profit and enjoyment. Our affections, on a general prospect of their objects, form certain rules of conduct, and certain measures of preference of one above another: and these decisions, though really the result of our calm passions and propensities, (for what else can pronounce any object eligible or the contrary?) are yet said, by a natural abuse of terms, to be the determinations of pure REASON and reflection. But when some of these objects approach nearer to us, or acquire the advantages of favourable lights and positions, which catch the heart or imagination; our general resolutions are frequently confounded, a small enjoyment preferred, and lasting shame and sorrow entailed upon us. And however poets may employ their wit and eloquence, in celebrating present pleasure, and rejecting all distant views to fame, health, or fortune; it is obvious, that this practice is the source of all dissoluteness and disorder, repentance and misery. A man of a strong and determined temper adheres tenaciously to his general resolutions, and is neither seduced by the allurements of pleasure, nor terrified by the menaces of pain; but keeps still in view those distant pursuits, by which he, at once, ensures his happiness and his honour.