Secondly, truth conduces to our improvement in virtue. Virtue, in its purest and most liberal sense, supposes an extensive survey of causes and their consequences that, having struck a just balance between the benefits and injuries that adhere to human affairs, we may adopt the proceeding which leads to the greatest practicable advantage. Virtue, like every other endowment of man, admits of degrees. He therefore must be confessed to be most virtuous who chooses with the soundest judgement the greatest and most universal overbalance of pleasure. But, in order to choose the greatest and most excellent pleasures, he must be intimately acquainted with the nature of man, its general features and its varieties. In order to forward the object he has chosen, he must have considered the different instruments for impressing mind, and the modes of applying them, and must know the properest moment for bringing them into action. In whatever light we consider virtue, whether we place it in the act or the disposition, its degree must be intimately connected with the degree of knowledge. No man can so much as love virtue sufficiently who has not an acute and lively perception of its beauty, and its tendency to produce the most solid and permanent happiness. What comparison can be made between the virtue of Socrates, and that of a Hottentot or a Siberian? A humorous example how universally this truth has been perceived may be taken from Tertullian, who, as a father of the church, was obliged to maintain the hollowness and insignificance of pagan virtues, and accordingly assures us, "that the most ignorant peasant under the Christian dispensation possesses more real knowledge than the wisest of the ancient philosophers."
We shall be more fully aware of the connection between virtue and knowledge if we consider that the highest employment of virtue is to propagate itself.
Virtue alone deserves to be considered as leading to true happiness, the happiness which is most solid and durable. Sensual pleasures are momentary;Chapter hey fill a very short portion of our time with enjoyment, and leave long intervals of painful vacuity. They charm principally by their novelty;Chapter y repetition they first abate of their poignancy, and at last become little less than wearisome. It is perhaps partly to be ascribed to the high estimation in which sensual pleasures are held that old age is so early and regular in its ravages. Our taste for these pleasures necessarily declines; with our taste our activity; and with our activity gradually crumble away the cheerfulness, the energy and the lives, of those whose dependence was placed upon these resources. Even knowledge, and the enlargement of intellect, are poor when unmixed with sentiments of benevolence and sympathy. Emotions are scarcely ever thrilling and electrical without something of social feeling. When the mind expands in works of taste and imagination, it will usually be found that there is something moral in the cause which gives birth to this expansion; and science and abstraction will soon become cold, unless they derive new attractions from ideas of society. In proportion therefore to the virtue of the individual will be the permanence of his cheerfulness, and the exquisiteness of his emotions. Add to which, benevolence is a resource which is never exhausted; but on the contrary, the more habitual are our patriotism and philanthropy, the more will they become invigorating and ardent.
It is also impossible that any situation can occur in which virtue cannot find room to expatiate. In society there is continual opportunity for its active employment. I cannot have intercourse with a human being who may not be the better for that intercourse. If he be already just and virtuous, these qualities are improved by communication. If he be imperfect and erroneous, there must always be some prejudice I may contribute to destroy, some motive to delineate, some error to remove. If I be prejudiced and imperfect myself, it cannot however happen that my prejudices and imperfections shall be exactly coincident with his. I may therefore inform him of the truths that I know, and, even by the collision of prejudices, truth is elicited. It is impossible that I should strenuously apply myself to his improvement with sincere motives of benevolence, without some good being the result.
Nor am I more at a loss in solitude. In solitude I may accumulate the materials of social benefit. No situation can be so desperate as to preclude these efforts. Voltaire, when shut up in the Bastille, and for aught he knew for life, deprived of the means either of writing or reading, arranged and in part executed the project of his Henriade.
All these reasonings are calculated to persuade us that the most precious boon we can bestow upon others is virtue, and that the highest employment of virtue is to propagate itself. But, as virtue is inseparably connected with knowledge in my own mind, so by knowledge only can it be imparted to others. How can the virtue we have just been contemplating be produced but by infusing comprehensive views, and communicating energetic truths?
Now that man alone is qualified to infuse these views, and communicate these truths, who is himself pervaded with them.
Let us suppose for a moment virtuous dispositions existing without knowledge or outrunning knowledge, the last of which is certainly possible; and we shall presently find how little such virtue is worthy to be propagated.
