Sarah Caudwell said this quote
“ You will be interested to hear, Hilary, that it [the drug] had a most remarkable effect — even on Selena after a very modest quantity. She cast off all conventional restraints and devoted herself without shame to the pleasure of the moment. I asked for particulars of this uncharacteristic conduct. She took from her handbag a paperback edition of Pride and Prejudice and sat on the sofa reading it, declining all offers of conversation. ”