We find from experience, that such a degree of passion is usually connected with such a misfortune; and though there be an exception in the present case, yet the imagination is affected by the general rule, and makes us conceive a lively idea of the passion, or rather feel the passion itself, in the same manner, as if the person were really actuated by it.
From the same principles we blush for the conduct of those, who behave themselves foolishly before us; and that though they shew no sense of shame, nor seem in the least conscious of their folly.

All this proceeds from sympathy; but it is of a partial kind, and views its objects only on one side, without considering the other, which has a contrary effect, and would entirely destroy that emotion, which arises from the first appearance.
We have also instances, wherein an indifference and insensibility under misfortune encreases our concern for the misfortunate, even though the indifference proceed not from any virtue and magnanimity.

It is an aggravation of a murder, that it was committed upon persons asleep and in perfect security; as historians readily observe of any infant prince, who is captive in the hands of his enemies, that he is the more worthy of compassion the less sensible he is of his miserable condition.

As we ourselves are here acquainted with the wretched situation of the person, it gives us a lively idea and sensation of sorrow, which is the passion that generally attends it; and this idea becomes still more lively, and the sensation more violent by a contrast with that security and indifference, which we observe in the person himself.

A contrast of any kind never fails to affect the imagination, especially when presented by the subject; and it is on the imagination that pity entirely depends.
[Footnote 11.