Using Block Quotations
A lengthy quotation—one exceeding four lines of text—is often set off as a"block quotation," or independent passage indented on the left margin. Typically, they appear immediately following the paragraph introducing the quotation.
The general rule is to end the last sentence of the paragraph preceding the block quotation with a colon, then drop down a line in your text—as if beginning a new paragraph—before inserting the quoted material. One inch (about 10 spaces) is the standard.
Be sure to cite the source of your quotation properly: for more on that, please refer to the style rules of the documentation system (MLA, APA, Chicago Manual of Style, etc.) your academic discipline requires.
Note: Unlike other quotations, block quotations do not require the use of quotation marks. Blocking and indenting the text, as well as introducing the quotation in the preceding paragraph, sufficiently notifies the reader of its status.