"Soul?" Does a dog have a soul? How about cockroach? — Robert A. Heinlein

Acronym created by Heinlein for "There Ain't No Such Thing As A Free Lunch"; Heinlein and Milton Friedman are sometimes credited with creating this phrase, but it existed well before either's use of it, dating to at least the 1930s.

Acronym for "There Ain't No Such Thing As A Free Lunch." The origin of this phrase is often misattributed to Heinlein or Milton Friedman, but it actually dates back to at least the 1930s. Heinlein's contribution was to make the acronym for it.

What I fear most are affirmative actions of sober and well-intentioned men, granting to government powers to do something that appears to need doing.