That the highest degree of reverence should be paid to youth, and that nothing indecent should be suffered to approach their eyes or ears, are precepts extorted by sense and virtue from an ancient writer, by no means eminent for chastity of thought. The same kind, though not the same degree, of caution, is required in every thing which is laid before them, to secure them from unjust prejudices, perverse opinions, and incongruous combinations of images. In the romances formerly written, every transaction and sentiment was so remote from all that passes among men, that the reader was in very little danger of making any applications to himself; the virtues and crimes were equally beyond his sphere of activity; and he amused himself with heroes and with traitors, deliverers and persecutors, as with beings of another species, whose actions were regulated upon motives of their own, and who had neither faults nor excellencies in common with himself. But when an adventurer is levelled with the rest of the world, and acts in such scenes of the universal drama, as may be the lot of any other man; young spectators fix their eyes upon him with closer attention, and hope, by observing his behaviour and success, to regulate their own practices, when they shall be engaged in the like part. For this reason these familiar histories may perhaps be made of greater use than the solemnities of professed morality, and convey the knowledge of vice and virtue with more efficacy than axioms and definitions. But if the power of example is so great as to take possession of the memory by a kind of violence, and produce effects almost without the intervention of the will, care ought to be taken, that, when the choice is unrestrained, the best examples only should be exhibited; and that which is likely to operate so strongly, should not be mischievous or uncertain in its effects. The chief advantage which these fictions have over real life is, that their authors are at liberty, though not to invent, yet to select objects, and to cull from the mass of mankind, those individuals upon which the attention ought most to be employed; as a diamond, though it cannot be made, may be polished by art, and placed in such a situation, as to display that lustre which before was buried among common stones. It is justly considered as the greatest excellency of art, to imitate nature; but it is necessary to distinguish those parts of nature, which are most proper for imitation: greater care is still required in representing life, which is so often discoloured by passion, or deformed by wickedness. If the world be promiscuously described, I cannot see of what use it can be to read the account; or why it may not be as safe to turn the eye immediately upon mankind as upon a mirrour which shews all that presents itself without discrimination.