If it feels good…

"I am afraid," replied Elinor, "that the pleasantness of an employment does not always evince its propriety."

"On the contrary, nothing can be a stronger proof of it, Elinor; for if there had been any real impropriety in what I did, I should have been sensible of it at the time, for we always know when we are acting wrong, and with such a conviction I could have had no pleasure."

Sense and Sensibility, volume 1, chapter 13

Austen, no doubt, came down on Elinor's side on this one.  What do you think?