Quoted text may be either run-in to the surrounding text and enclosed in quotation marks or set off as a block quotation. In general a short quote should be run-in and quotes longer than 100 words should be block quotes.
Incorporate the quote grammatically into your sentence and enclose the exact words in quote marks like this:
The narrator’s constant references to “malicious code and obsolete data” detract from a more fundamental issue—that we are dumping “the burden of human history” onto computer hard drives.
Start the quote with a new paragraph and indent the text. Use double spacing and include the page number in the corresponding footnote. Do not use quotation marks.