Now, if theories had power of themselves to make us good, “many great rewards would they deserve” as Theognis says, and such ought we to give; but in fact it seems that though they are potent to guide and to stimulate liberal-minded young men, and though a generous disposition, with a sincere love of what is noble, may by them be opened to the influence of virtue, yet they are powerless to turn the mass of men to goodness. For the generality of men are naturally apt to be swayed by fear rather than by reverence, and to refrain from evil rather because of the punishment that it brings than because of its own foulness. For under the guidance of their passions they pursue the pleasures that suit their nature and the means by which those pleasures may be obtained, and avoid the opposite pains, while of that which is noble and truly pleasant they have not even a conception, as they have never tasted it.