sisters' desire; the
very fables of Thyestes, OEdipus, and Macareus, having with the harmony
of their song, infused this wholesome opinion and belief into the tender
brains of children. Chastity is, in truth, a great and shining virtue,
and of which the utility is sufficiently known; but to treat of it, and
to set it off in its true value, according to nature, is as hard as 'tis
easy to do so according to custom, laws, and precepts. The fundamental
and universal reasons are of very obscure and difficult research, and our
masters either lightly pass them over, or not daring so much as to touch
them, precipitate themselves into the liberty and protection of custom,
there puffing themselves out and triumphing to their heart's content:
such as will not suffer themselves to be withdrawn from this original
source, do yet commit a greater error, and subject themselves to wild
opinions; witness Chrysippus,--[Sextus Empiricus, Pyyrhon. Hypotyp., i.
14.]--who, in so many of his writings, has strewed the little account he
made of incestuous conjunctions, committed with how near relations
soever.

Whoever would disengage himself from this violent prejudice of custom,
would find several things received with absolute and undoubting opinion,
that have no other support than the hoary head and rivelled face of
ancient usage. But the mask taken off, and things being referred to the
decision of truth and reason, he will find his judgment as it were
altogether overthrown, and yet restored to a much more sure estate. For
example, I shall ask him, what can be more strange than to see a people
obliged to obey laws they never understood; bound in all their domestic
affairs, as marriages, donations, wills, sales, and purchases, to rules
they cannot possibly know, being neither written nor published in their
own language, and of which they are of necessity to purchase both the
interpretation and the use? Not according to the ingenious opinion of
Isocrates,--[Discourse to Nicocles.]--who counselled his king to make
the traffics and negotiations of his subjects, free, frank, and of profit
to them, and their quarrels and disputes burdensome, and laden with heavy
impositions and penalties; but, by a prodigious opinion, to make sale of
reason itself, and to give to laws a course of merchandise. I think
myself obliged to fortune that, as our historians report, it was a Gascon
gentleman, a countryman of mine, who first opposed Charlemagne, when h