Beamer frame with picture and quote

Question

I would like a frame template with an image in the right bottom corner and some text to the left of it. How could I achieve this?

Here's a picture of what I had in mind.

The presentation code comes from the Beamer Manual (1.3. Euclid's presentation).

There is an option to add a picture to the bottom right of each slide. However, it's always the same picture, as it's thought for university logos.

MWE without the picture and quote, as those were added with GIMP after generating the frame.

% From the beamer manual. 

\documentclass{beamer}

\mode<presentation>
{
  \usetheme{Warsaw}
  % or ...

  \setbeamercovered{transparent}
  % or whatever (possibly just delete it)
}


\usepackage[english]{babel}

\usepackage[latin1]{inputenc}

\usepackage{times}
\usepackage[T1]{fontenc}


\title[] % (optional, use only with long paper titles)
{There is no largest prime number}

\subtitle
{A no-nonsense self-contained guide.} % (optional)

\author[Euclides]{Euclides of Alexandria \\ \texttt{[email protected]}}
%%%%%{F.~Author\inst{1} \and S.~Another\inst{2}}
% - Use the \inst{?} command only if the authors have different
%   affiliation.



\date[Short Occasion] % (optional)
{2017-01-15 / Informal gathering}

\subject{Index Funds and Efficient Investing}
% This is only inserted into the PDF information catalog. Can be left
% out. 



% If you have a file called "university-logo-filename.xxx", where xxx
% is a graphic format that can be processed by latex or pdflatex,
% resp., then you can add a logo as follows:

% \pgfdeclareimage[height=0.5cm]{university-logo}{university-logo.png}
% \logo{\pgfuseimage{university-logo}}



% Delete this, if you do not want the table of contents to pop up at
% the beginning of each subsection:
\AtBeginSubsection[]
{
  \begin{frame}<beamer>{Outline}
    \tableofcontents[currentsection,currentsubsection]
  \end{frame}
}




\begin{document}

\begin{frame}
  \titlepage
\end{frame}

\begin{frame}{Outline}
  \tableofcontents
  % You might wish to add the option [pausesections]
\end{frame}


\section{Motivation}

\subsection[Short First Subsection Name]{First Subsection Name}



\end{document}

Answer 1

A simple solution: just borrow the logo layer to place you quote:

\documentclass{beamer}

\usetheme{Warsaw}

\begin{document}

{
    \logo{%
        \usebeamercolor*[fg]{normal text}
        \small 
        \begin{minipage}[b]{3cm}
            If we knew what it was we were doing, it would not be called research, would it? -- Albert Einstein
        \end{minipage}\quad\includegraphics[width=3cm]{example-image}
    }
    \begin{frame}
        bla
    \end{frame}
}
\end{document}