least let same-sex couples and polygamists enjoy the same government benefits as opposite-sex married couples?" He did talk about marriage. What he said was that instutions like marriage are the result of the collective wisdom of our ancestors figuring out how to do things. And if people want to try new things, they should be free to. If their idea, say gay marriage or polygamy doesn't work, it will die out. Polygamy and homosexuality seem to be as old as monogamous marriage. Although, maybe homosexuals calling themselves married is something new, I never studied the ancient greeks that closely. The real test of this kind of issue is pedophilia (accepted by at least the ancient Greeks and I assume others.) That's a line that strikes me as hard to cross from a legality standpoint. But, it is a line that would surely be tested in a libertarian society. Would Libertarians tolerate a Jeff Jeffers in their midst as long as he got permission from that 8 year old and her parents. I don't see it given the prevailing morals of today. Some morals that are quite clearly a result of civil society (those weird Greeks again) inevitably get enforced with violence (either government or private). Surely, tolerance is a virtue but there is always someone who can succeed at pushing your tolerance beyond the pale. The principle of non-initiation of force solves most problems associated with the mixing of cultures and the formation of civil society but not quite all.