There exists, between people in love, a kind of capital held by each. This is not just a stock of affects or pleasure, but also the possibility of playing double or quits with the share you hold in the other's heart.
Bio: Dame Antonia Susan Duffy, known as A. S. Byatt, was an English novelist, poet and Booker Prize winner. In 2008, The Times newspaper named her on its list of the 50 greatest British writers since 1945.