I had relatives in New York City who I stayed with. And in those days, the area from Union Square down Fourth Avenue had small bookstores, many of which were run by Spanish immigrants who'd fled after [Francisco] Franco's victory. I spent time in them, and also in the offices of Freie Arbeiter Stimme (Free Worker's Voice) with anarchists. I picked up a lot of material and talked to people, and it became a major influence.

Very commonly I get queries. Somebody saw something of mine on YouTube and of course if there is a talk on YouTube, there aren't any footnotes - and they want to know why did you say this. Well if they bothered to look up something in print, they would've seen why I said that. If they ask for evidence, I just say well take a look and mention something they can read and that usually ends the conversation.

The principle that human nature, in its psychological aspects, is nothing more than a product of history and given social relations removes all barriers to coercion and manipulation by the powerful.

There is no reason to accept the doctrines crafted to sustain power and privilege, or to believe that we are constrained by mysterious and unknown social laws. These are simply decisions made within institutions that are subject to human will and that must face the test of legitimacy. And if they do not meet the test, they can be replaced by other institutions that are more free and more just, as has happened often in the past.

As a health scientist at Columbia University, Les Roberts, pointed out, sooner or later people are going to be looking at a child in a wheelchair suffering from polio and will say 'the Americans did that to him'. So they continue policies which have similar effects i.e. organising the Taliban. This will come back to them too.

France has not been able to come to terms with the fact that it's not a major power anymore. I mean even before the Second World War Paris was one of the main centers of intellectual and cultural life. But now Paris is a kind of subsidiary of Germany, their traditional enemy and they can't come to terms with it.

I have never heard of anyone who was a "model person" in all aspects of his or her life, intellectual life or other aspects; nor do I see why anyone should care. We are not engaged in idol worship, after all.