Being thus ardent in the cause of philosophy, he recommended it to the notice of his countrymen, not only for the honour which its introduction would reflect upon himself (which of course was a motive with him), but also with the fondness of one who esteemed it "the guide of life, the parent of virtue, the guardian in difficulty, and the tranquillizer in misfortune."[144] Nor were his mental endowments less adapted to the accomplishment of his object than the spirit with which he engaged in the work. Gifted with great versatility of talent, with acuteness, quickness of perception, skill in selection, art in arrangement, fertility of illustration, warmth of fancy, and extraordinary taste, he at once seizes upon the most effective parts of his subject, places them in the most striking point of view, and arrays them in the liveliest and most inviting colours. His writings have the singular felicity of combining brilliancy of execution with never-failing good sense. It must be allowed that he is deficient in depth; that he skims over rather than dives into the subjects of which he treats; that he had too great command of the plausible to be a patient investigator or a sound reasoner. Yet if he has less originality of thought than others, if he does not grapple with his subject, if he is unequal to a regular and lengthened disquisition, if he is frequently inconsistent in his opinions, we must remember that mere soundness of view, without talent for display, has few recommendations for those who have not yet imbibed a taste even for the outward form of knowledge,[145] that system nearly precludes freedom, and depth almost implies obscurity. It was this very absence of scientific exactness which constituted in Roman eyes a principal charm of Cicero's compositions.[146] Nor must his profession as a pleader be forgotten in enumerating the circumstances which concurred to give his writings their peculiar character. For, however his design of interesting his countrymen in Greek literature, however too his particular line of talent, may have led him to explain rather than to invent; yet he expressly informs us it was principally with a view to his own improvement in Oratory that he devoted himself to philosophical studies.[147] This induced him to undertake successively the cause of the Stoic, the Epicurean, or the Platonist, as an exercise for his powers of argumentation; while the wavering and unsettled state of mind, occasioned by such habits of disputation, led him in his personal judgment to prefer the sceptical tenets of the New Academy. 6. Here then, before enumerating Cicero's philosophical writings, an opportunity is presented to us of redeeming the pledge we have given elsewhere in our Encyclopaedia,[148] to consider the system of doctrine which the reformers (as they thought themselves) of the Academic school introduced about 300 years before the Christian era.