The author quotes Niels Bohr who says "you are not thinking you are merely being logical." sounds like a nice saying, but what is really the difference between

The author quotes Niels Bohr who says "you are not thinking you are merely being logical." sounds like a nice saying, but what is really the difference between being logical and thinking? What does Bohr do when he thinks? (I was just reading Polya's How to Solve It, maybe Bohr had in mind methods of investigations studied by Polya).