At 7 a.m. I am watching New Dog Libby romp. Guy in a pickup, a professional tree man, pulls up and wonders if I'd care to own a big load of bucked burr oak. I said "sure" and asked where it was. "Down on Lake Shore Drive, but I'll bring it to you. Where ya want it dumped?"
"Aww, c'mon. I'll go get it."
"Naah. I'll bring it."
I smiled, said thanks, and pulled out a medium-sized Federal Reserve Cartoon. "Why don't you treat your crew to a few beers on me after work?"
"Nope. Glad to get rid of it." (Repeat dialog on the same theme for a couple-three more lines.)
The friendly tone, along with money offered and refused, is one example of genuine good will with which Ayn Rand seasons her lessons on free markets and rational self-interest. Others might just call it the KY Jelly of commerce.
The pictured result greeted me when I returned from cage-fighting Mediacom. There's more fuel than the picture represents, a full cord at least, value in FRCs $150 or more.
Why libertarian? Because two men cooperated to their mutual advantage. I got firewood free, save for the labor of cutting and splitting. My pal saved the trouble and expense of hauling it a long way. Not even Elizabeth Warren could improve on that, though she would damned well try. Or at least report me to the IRS if I forget to declare it as in-kind income.