A Permanent Loss of Happiness

Thomas Hardy, A Pair of Blue Eyes (London: Osgood, McIlvaine & Co., 1895), p. 280:

There are disappointments which wring us, and there are those which inflict a wound whose mark we bear to our graves. Such are so keen that no future gratification of the same desire can ever obliterate them: they become registered as a permanent loss of happiness. 

This quote is one of the first selected by Alfred Hyatt in The Pocket Thomas Hardy (London: Chatto & Windus, 1906).