 Disinterested love is not completely selfless however. Nor can it consistently be on Leibniz's view since he subscribes to a version of psychological egoism; “for we do all for our own good,” he maintains, “and it is impossible for us to have other feelings whatever we may say” (W, “Letter to Nicaise,” p. 565). In his account of disinterested love, Leibniz in fact seeks to reconcile egoism and altruism, and, in doing so, anticipates Bishop Butler's (1692–1752) landmark attack against psychological egoism (BM1, Fifteen Sermons (1726), pp. 364–373).