Interesting to note, these very words are in the Satanic bible, "do as thou wilt"
Even more interesting note, Anton Zander stole those words and dropped the "an it harm none" part to support his "humans are just animals" approach to religion. There is a massive difference between Hollywoods portrayal of Satanists and the reality. In reality, they are little more than secular humanists.
Pagans don't believe in the Christian "Satan". Period.
Gee, as if a book was needed to order people to do that. (The self contradictory nature of evil)
It is neither an ancient pagan motto, nor Satanic in origin.
It is from Gargantua and Pantagruel by Rabelais. In that book (written in the 1500s), this is the motto of the "Abbey of Thelema" a so-called monastery inhabited by self indulgent nobility. The whole bit is a satire.
The Satanic/"pagan" connection originates in the 1930s, when Aleister Crowley pretended to take it seriously at part of his deception of his ignorant admirers. Now various "pagan" types really take it seriously.
So I was wrong. Libertarianism does have a political history stretching into antiquity...
LOL!