In a discussion of this kind our interest should be centered not on the weight of the authority but on the weight of the argument. Indeed the authority of those who set out to teach is often an impediment to those who wish to learn. They cease to use their own judgment and regard as gospel whatever is put forward by their chosen teacher.
Nothing so cements and holds together all the parts of a society as faith or credit, which can never be kept up unless men are under some force or necessity of honestly paying what they owe to one another.
That which leads us to the performance of duty by offering pleasure as its reward, is not virtue, but a deceptive copy and imitation of virtue.
[Lat., Nam quae voluptate, quasi mercede aliqua, ad officium impellitur, ea non est virtus sed fallax imitatio simulatioque virtutis.]
These (literary) studies are the food of youth, and consolation of age; they adorn prosperity, and are the comfort and refuge of adversity; they are pleasant at home, and are no incumbrance abroad; they accompany us at night, in our travels, and in our rural retreats.
But as to the affection which anyone may have for us, it is the first demand of duty that we do most for him who loves us most; but we should measure affection, not like youngsters, by the ardour of its passion, but rather by its strength and constancy.