8.  To consider further this double end in the works of nature; and how they are, at the same time, both useful and entertaining, we find that the most important parts in the vegetable world are those which are the most beautiful.  These are the seeds by which the several races of plants are propagated and continued, and which are always lodged in flowers or blossoms.  Nature seems to hide her principal design, and to be industrious in making the earth gay and delightful, while she is carrying on her great work, and intent upon her own preservation.  The husbandman, after the same manner, is employed in laying out the whole country into a kind of garden or landscape, and making every thing smile about him, whilst, in reality, he thinks of nothing but of the harvest and increase which is to arise from it.

9.  We may further observe how Providence has taken care to keep up this cheerfulness in the mind of man, by having formed it after such a manner, as to make it capable of conceiving delight from several objects which seem to have very little use in them; as from the wildness of rocks and deserts, and the like grotesque parts of nature.  Those who are versed in philosophy may still carry this consideration higher by observing, that, if matter had appeared to us endowed only with those real qualities which it actually possesses, it would have made but a very joyless and uncomfortable figure; and why has Providence given it a power of producing in us such imaginary qualities, as tastes and colours, sounds and smells, heat and cold, but that man, while he is conversant in the lowest stations of nature, might have his mind cheered and delighted with agreeable sensations?  In short, the whole universe is a kind of theatre filled with objects that either raise in us pleasure, amusement, or admiration.

10.  The reader’s own thoughts may suggest to him the vicissitude of day and night, the change of seasons, with all that variety of scenes which diversify the face of nature, and fill the mind with a perpetual succession of beautiful and pleasing images.

I shall not here mention the several entertainments of art, with the pleasures of friendship, books, conversation, and other accidental diversions of life, because I would only take notice of such incitements to a cheerful temper, as offer themselves to persons of all ranks and Conditions, and which may sufficiently show us, that Providence did not design this world should be filled with murmurs and repinings, or that the heart of man should be involved in gloom and melancholy.

11.  I the more inculcate this cheerfulness of temper, as it is a virtue in which our countrymen are observed to be more deficient than any other nation.  Melancholy is a kind of daemon that haunts our island, and often conveys herself to us in an easterly wind.  A celebrated French novelist, in opposition to those who begin their romances with a flowery season of the year, enters on his story thus:  In the gloomy month of November, when the people of England hang and drown themselves, a disconsolate lover walked out into the fields, &c.