Thanks, Paul.
I do have lots of quotes and I'd like to use a consistent style throughout.
I've come across the setspace.sty package, and also this:
\makeatletter
\renewenvironment{quote}
{\begin{spacing}{1}\list{}{\rightmargin\leftmargin}%
\item\relax}
{\endlist\end{spacing}\noindent\hspace{-0.333em}}
\makeatother
but being a newbie, I don't understand which one should be used in what
circumstances. To clarify, I need all the text to be 1.5 spaced, except
for the quotes (and footnotes), which should be single spaced (and with
a smaller font).
Thanks for the help.
Eran