  Many philosophers would no doubt accept that the methods and techniques of science are the best way to find out about the world. (With or without the points just noted about the word “science”.) The distinctiveness of Quine’s naturalism begins to emerge if we ask what justifies this naturalistic claim: what reason do we have to believe that the methods and techniques of science are the best way to find out about the world? Quine would insist that this claim too must be based on natural science. (If this is circular, he simply accepts the circularity.) This is the revolutionary step: naturalism self-applied. There is no foundation for Quine’s naturalism: it is not based on anything else.