Quotations on compilation websites may contain errors or even be misattributed, so it’s best to track down the source of the quotation. If doing so isn’t possible, then in your works-cited-list entry list the author of the web page (if one is identified), the title of the page, the name of the website, the publication date (if available), and the URL, following the MLA format template. Key your in-text citation to the first element of the entry.

According to C. S. Lewis, “Failures, repeated failures, are finger posts on the road to achievement. One fails forward toward success” (qtd. in “C. S. Lewis Quotes”).

Work Cited

“C. S. Lewis Quotes.” BrainyQuote, 2001-20, www.brainyquote.com/
authors/c-s-lewis-quotes.

Note that the page “C. S. Lewis Quotes” has no clear author, so the works-cited-list entry skips the Author element and begins with the title of the page.

Note also that “qtd. in” in the citation indicates that this is an indirect source, following section 3.4 of the eighth edition of the MLA Handbook. If your discussion makes clear that the quotation is from an indirect source, then the abbreviation “qtd. in” isn’t needed:

C. S. Lewis quotations like this one can be found all over the Internet: “Failures, repeated failures, are finger posts on the road to achievement. One fails forward toward success” (“C. S. Lewis Quotes”).

Work Cited

MLA Handbook. 8th ed., Modern Language Association of America, 2016.