Sense & Sensibility.
'I am afraid' replied Elinor, 'that the pleasantness of an employment does not always evince its propriety.'I am having the pleasure of reading Jane Austen for the first time.
'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.'