much as respectable selfishness."
Me also thinks that "Convenient Charity" could easily be swapped out for "Respectable Selfishness", in the MacDonald quote, for if we give of ourselves only what is surplus, are we truly loving with the sacrificial love of the Son who we say we want to imitate?
"Each of you should look not only to your own interests,
but also to the interests of others"
-- Philippians 2:4
(thanks to Father Larry)