Webster's Revised Unabridged Dictionary · 1913

Selfishness

Selfishness , noun

The quality or state of being selfish; exclusive regard to one's own interest or happiness; that supreme self-love or self-preference which leads a person to direct his purposes to the advancement of his own interest, power, or happiness, without regarding those of others.
Selfishness, -- a vice utterly at variance with the happiness of him who harbors it, and, as such, condemned by self-love. — Sir J. Mackintosh