By two comparisons so disadvantageous the passion must be entirely destroyed.
III The third limitation is, that the pleasant or painful object be very discernible and obvious, and that not only to ourselves, but to others also.

This circumstance, like the two foregoing, has an effect upon joy, as well as pride.

We fancy Ourselves more happy, as well as more virtuous or beautiful, when we appear so to others; but are still more ostentatious of our virtues than of our pleasures.

This proceeds from causes, which I shall endeavour to explain afterwards.
IV.

The fourth limitation is derived from the inconstancy of the cause of these passions, and from the short duration of its connexion with ourselves.