It reaches not the sensible and thinking part, and neither proceeds from any thing durable in him, nor leaves any thing behind it; but passes in a moment, and is as if it had never been.

On the other hand, an intention shews certain qualities, which remaining after the action is performed, connect it with the person, and facilitate the transition of ideas from one to the other.

We can never think of him without reflecting on these qualities; unless repentance and a change of life have produced an alteration in that respect: In which case the passion is likewise altered.

This therefore is one reason, why an intention is requisite to excite either love or hatred.
But we must farther consider, that an intention, besides its strengthening the relation of ideas, is often necessary to produce a relation of impressions, and give rise to pleasure and uneasiness.

For it is observable, that the principal part of an injury is the contempt and hatred, which it shews in the person, that injures us; and without that, the mere harm gives us a less sensible uneasiness.