How do I get MLA block quotes in LaTeX?

Using the following code produces block quotes with incorrect margins, as I have to follow MLA format.

begin{quote}
<text>
end{quote}

Result:

What I need is a .5 inch increase on the left margin while the right margin is left alone, which would look like this:

The first image is from LaTeX, and the second is from google docs, however the latter is formatted correctly.

documentclass{article}
usepackage{lipsum}
begin{document}
lipsum[1]

leftskip=0.5inbigskipnoindent
lipsum[2]

leftskip=0ptbigskip
lipsum[3]
end{document}