The superiority of intellectual to sensual pleasures consists rather in their filling up more time, in their having a larger range, and in their being less liable to satiety, than in their being more real and essential.
Intemperance in every enjoyment defeats its own purpose.

A walk in the finest day through the most beautiful country, if pursued too far, ends in pain and fatigue.

The most wholesome and invigorating food, eaten with an unrestrained appetite, produces weakness instead of strength.
Even intellectual pleasures, though certainly less liable than others to satiety, pursued with too little intermission, debilitate the body, and impair the vigour of the mind.

To argue against the reality of these pleasures from their abuse seems to be hardly just.

Morality, according to Mr Godwin, is a calculation of consequences, or, as Archdeacon Paley very justly expresses it, the will of God, as collected from general expediency.