I agree this is how he was classified on the modern spectrum but I think he was really a classic liberal, a pre-Peter Thiel libertarian without all the distracting noise. He's a hard person to fit cleanly into any single bucket, which is a good thing that isn't received well in our current binary environment.
"There is only one basic human right: the right to do as you please, without causing others harm. With it comes our only basic human duty: the duty to accept the consequences of our actions."
We're pretty good at the former, and almost universally ignore the latter.