11 He pretty obviously never could have had a daughter, either. But he did have intellectual “heirs,” and Wittgenstein’s Daughter would have Kate seem like one—too simple, linear, for so complex a character or her relations to masters. Plus “daughter,” unlike “mistress,” fails to convey the exquisite loneliness of being the linguistic beloved of a man who could not, in emotional practice, confer identity on a woman via his love.