You must BE good.

And we've hardly done anything.

The Golden Deed book's almost empty.' 'Couldn't we have a book of leaden deeds ?' said Noel, coming out of his poetry, 'then there'd be plenty for Alice to write about if she wants to, or brass or zinc or aluminium deeds?
We shan't ever fill the book with golden ones.' H.O.had rolled himself in the red tablecloth and said Noel was only advising us to be naughty, and again peace waved in the balance.

But Alice said, 'Oh, H.O., DON'T--he didn't mean that; but really and truly, I wish wrong things weren't so interesting.

You begin to do a noble act, and then it gets so exciting, and before you know where you are you are doing something wrong as hard as you can lick.' 'And enjoying it too' Dick said.
'It's very curious,' Denny said, 'but you don't seem to be able to be certain inside yourself whether what you're doing is right if you happen to like doing it, but if you don't like doing it you know quite well.