Adverb
In a selfish manner; with regard to private interest only or chiefly.
Source: Webster's dictionaryI am always reading immoral books on the sly, and then selfishly trying to prevent other people from having the same wicked good time. Mark Twain
Art is a goddess of dainty thought, reticent of habit, abjuring all obtrusiveness, purposing in no way to better others. She is, withal selfishly occupied with her own perfection only - having no desire to teach. James McNeill Whistler
Erotic or sexual love can truly be love if it is not selfishly sexual or lustful. Mortimer Adler
I don't think people who have children are acting selfishly or unselfishly. Having a child who'll be loved, to parents who love each other, is the important thing. Terry Jones
One of the purposes of life, and selfishly what makes people happy, is building things that are impactful. Dustin Moskovitz
A morsel eaten selfishly does not gain a friend. Spanish Proverb