...posting here to clear my mods --- sorry, I somehow chose the wrong option from the drop-down...

The Hazlitt book is a persuasive and very readable exposition of "classical" economics.
As a counterpoint, may I recommend Paul Krugman's explanation of Keynes's General Theory? It's here. Keynes revolutionized economics by showing how Hazlitt's "broken window" isn't a good analogy for an economy in a recession.

How could you possibly make a cogent point about a scientific issue in thirty seconds?

I guess you could talk quickly. "Thereisalargebodyofevidencefrommanysourcessupport ingtheexistenceofevolutiontherealquestionishowtoex plainthatevidencedontyouagreethatDarwinsmodelprovi desa..."