I have no quarrel with libertarians who advance the concept of capitalism . I believe that people will decide for themselves what they want to do. The all-important thing is that they be free to make that decision and that they do not stand in the way of communities that wish to make other decisions.

There's a sense in which Marx does contribute to the fund of human knowledge, and we can no more dismiss him than we can [George] Hegel or [Jean-Jacques] Rousseau or [Baruch] Spinoza or [Charles] Darwin; you don't have to be a Darwinian to appreciate Darwin's views, and I don't have to be a Marxist to appreciate what is valid in a number of [Karl] Marx's writings-and Marx would call that a form of simple commodity production rather than capitalism.

I've had training in electronics engineering, of all things, and in languages. But I've never taken any degree, something I share with Lewis Mumford, I think.

People are never free of trying to be content.

My thinking is very flexible, and I hope that it will remain flexible and creative as long as biology permits me to think and that I will remain a rebel all my life.

City planning finds its validation in the intuitive recognition that a burgeoning market society can not be trusted to produce spontaneously a habitable, sanitary, or even efficient city, much less a beautiful one.

I believe that anarchists should agree to disagree but not to fight with each other.