What hadn't been realized in the literature until now is that merely to describe how severely something has been tested in the past itself embodies inductive assumptions, even as a statement about the past.

He also devised the thought experiment of The Experience Machine in an attempt to show that ethical hedonism was false. Later books
The Examined Life (1989) pitched to a broader public explores love death faith reality and the meaning of life. He is best known for his book Anarchy State and Utopia (1974) a libertarian answer to John Rawls' A Theory of Justice (1971).

He was a professor at Harvard University. He is best known for his book Anarchy State and Utopia (1974) a libertarian answer to John Rawls' A Theory of Justice (1971).