How could tickling, even though it causes laughter, be at the same time such a vicious form of torture?Sitting on the edge of my bed, I thought it through.I came to the conclusion, at last, that it was like this: Tickling and learning were much the same thing. When you tickle yourself—ecstasy; but when anyone else tickles you—agony.
Alan Bradley, As Chimney Sweepers Come to Dust
learning, tickling, torture