Here a fifth proof arises, stronger still:

Why this so nice construction of our hearts?

These delicate moralities of sense; 430

This constitutional reserve of aid

To succour virtue, when our reason fails;

If virtue, kept alive by care and toil,

And oft, the mark of injuries on earth,

When labour’d to maturity (its bill

Of disciplines, and pains, unpaid), must die?

Why freighted rich, to dash against a rock?