We can paraphrase the sentence as follows: Empiricism can be used as a methodology, just as it is used as a theory about knowledge and the contents of our minds.
In summary, paraphrasing allows the writer to re-present sentences from another text, keeping their original meanings, but modifying the words and even the structure of the text.
This allows the author to avoid plagiarism and to be able to demonstrate his writing skills.
More information about paraphrasing is in the link:
https://brainly.com/question/25262435