written with no very distinct idea; for he calls that an "Epistle to Bathurst," in which Bathurst is introduced as speaking.
He afterwards (1734) inscribed to Lord Cobham, his "Characters of Men," written with close attention to the operations of the mind and modifications of life. In this poem he has endeavoured to establish and exemplify his favourite theory of the ruling Passion, by which he means an original direction of desire to some particular object, an innate affection which gives all action a determinate and invariable tendency, and operates upon the whole system of life, either openly, or more secretly by the intervention of some accidental or subordinate propension.
Of any passion, thus innate and irresistible, the existence may reasonably be doubted. Human characters are by no means constant; men change by change of place, of fortune, of acquaintance; he who is at one time a lover of pleasure, is at another a lover of money. Those indeed who attain any excellence, commonly spend life in one pursuit; for excellence is not often gained upon easier terms. But to the particular species of excellence men are directed, not by an ascendant
