How to reference a quote like an equation?

Question

For my project, I've interviewed some people and used parts of those interviews as quotes in my project. Some quotes I would like to reference later on, just like how equations are referenced, with a number (1) right next to the equation.

My set up is

\documentclass[a4paper,11pt,oldfontcommands]{memoir}
\usepackage{pdfpages}
\usepackage{tikz}
\usetikzlibrary{positioning}
\usepackage{parskip}    
\usepackage{graphicx}   
\usepackage{framed}     
\usepackage{setspace}   
\usepackage{caption}
\newenvironment{myquote}{\list{}{\leftmargin=1.0cm\rightmargin=1.0cm}\centering\small\itshape\item[]}{\endlist}
\usepackage{mathtools}
\usepackage[colorlinks=true]{hyperref}

\begin{document}
This is an example of what the subject might be.    
\begin{myquote}
Oh really -stranger.
\end{myquote}

Some text in-between.

\begin{myquote}
yes really -me
\end{myquote}

As mentioned by me in quote No. 1, I responded to a stranger.

\end{document}

So if I'm writing:

\begin{myquote}
Example of a quote.
\end{quote}

I just get the quote, which is fine, but in some cases I also want a number to the right of it - for later references, like:

yes really -me                      (1) 

Here is a picture of what I have:

And all I want is a number next to some of the quotes, just like it's possible to do with some equations.

I have tried to label it as an equation \label{eq:1} but it didn't work, and I also tried with the other labels. I have also tried How to reference a point in a document with a counter and descriptive text?, but that only gives me an active reference, which is close, but not quite what I'm looking for. I also tried Quote environment with reference at the end right, but that too wasn't quite what I was looking for. I have also tried \usepackage{csquotes} which for some reason doesn't work for me.

Solved:

Added this to the preamble:

\usepackage{environ}
\newcounter{quote}

\NewEnviron{myquotenumber}{\vspace{3ex}\par
\refstepcounter{quote}%
\hfill\parbox{\dimexpr \textwidth-2cm}%brug \parbox[b] for bunden [c] (standard) for center og [t] for top
{\centering\small\textit{\BODY}}
\hfill\llap{(\thequote)}\vspace{2ex}\par}

Now all quotes beginning with \begin{myquote} won't be numbered and quotes with \begin{myquotenumber}\cite{marker} has numbers and can be referenced with \ref{marker}.

Answer 1

Trying to center the quote while placing the number on the right was too difficult using the list environment, so I used a \parbox instead. The main difference is that a \parbox will not break at the end of a page.

\documentclass[a4paper,11pt,oldfontcommands]{memoir}
\usepackage{pdfpages}
\usepackage{tikz}
\usetikzlibrary{positioning}
%\usepackage{caption}% incompatible with memoir
\usepackage{mathtools}
\usepackage{environ}
\usepackage[colorlinks=true]{hyperref}

\newcounter{quote}

\NewEnviron{myquote}{\vspace{1ex}\par
\refstepcounter{quote}%
\hfill\parbox{\dimexpr \textwidth-2cm}%
{\centering\small\textit{\BODY}}%
\hfill\llap{(\thequote)}\vspace{1ex}\par}

\begin{document}
This is an example of what the subject might be.    
\begin{myquote}\label{example}
Oh really -stranger.
\end{myquote}

Some text in-between.

\begin{myquote}
yes really -me
\end{myquote}

As mentioned by me in quote No. \ref{example}, I responded to a stranger.

\end{document}

Answer 2

This will get you started. You can modify it for different numbering (e.g by section as 1.1, 1.2 etc change the within=none to within=section). This example has a table of quotes with page numbers. You can easily modify it so you have no quote caption (or only a caption within the table of quotes), and have a different layout with the number on the right (e.g. put the quote in a table with number to right) -- I used the epigraph package to lay out the quote itself, but you will do as you wish for that part.

\documentclass{article}
\usepackage{newfloat}
\DeclareFloatingEnvironment[name=myquote,listname={List of Quotes}, within=none,placement=htbp,]{myquote}
\usepackage{caption}

\usepackage{epigraph}

\begin{document}

\listofmyquote

\epigraph{The sky is blue.}
{\textit{Monty Python} \captionof{myquote}{The blue quote}\label{quot:xyz}}

\epigraph{And now for something completely different.}
{\textit{Monty Python} \captionof{myquote}{Another Python quote}}

\epigraph{is that a dead parrot}
{\textit{Monty Python} \captionof{myquote}{Quote by Python}}

Here I refer to Quote~\ref{quot:xyz}

\end{document}

Well in response to your layout comment you can do whatever you like

Here is an example, though the code is getting a little spidery at this stage and you would need to clean it up and convert some to macros

\documentclass{article}
\usepackage{newfloat}
\usepackage{array}
\DeclareFloatingEnvironment[name=myquote,listname={List of Quotes}, within=none,placement=htbp,]{myquote}
\usepackage{caption}
\usepackage{epigraph}
\def\signed #1{{\leavevmode\unskip\nobreak\hfil\penalty50\hskip2em
  \hbox{}\nobreak\hfil(#1)%
  \parfillskip=0pt \finalhyphendemerits=0 \endgraf}}

\newsavebox\mybox
\newenvironment{aquote}[1]
  {\savebox\mybox{#1}\begin{quote}}
  {\signed{\usebox\mybox}\end{quote}}

  \newcommand*{\tabbox}[2][t]{%
    \vspace{0pt}\parbox[#1][3.7\baselineskip]{1cm}{\strut#2\strut}}

\DeclareCaptionLabelFormat{mylabformat}{\textbf{Q:#2}}%define a label format with prefix and bold
\captionsetup[myquote]{hypcap=false, format=plain,indention=0pt, labelformat=mylabformat, labelsep=colon,justification=RaggedRight, textfont=it, singlelinecheck=true,margin={1cm,1cm},maxmargin=0.05\linewidth, skip=10pt, position=top}%temporay test with captions package to make plan caption messes my magic figs

\begin{document}

\listofmyquote %purely optional

\begin{tabular}{p{0.8\linewidth}p{0.2\linewidth}}
\begin{aquote}{Bourbaki}
This is a case where the name fits in nicely with the quote so the name will appear in the same line.
\end{aquote}&
\tabbox[b]{\captionof{myquote}[Tag for table of quotes Bourbaki]{}}
\end{tabular}

\begin{tabular}{p{0.8\linewidth}p{0.2\linewidth}}
\begin{aquote}{Nicolas Bourbaki}
This is a case where the name won't fit in nicely with the quote, and in this case the name will be moved to the next line.
\end{aquote}&
\tabbox[b]{\captionof{myquote}[Tag for table of quotes Nicolas Bourbaki]{}\label{quot:xyz}}

\end{tabular}

\begin{tabular}{p{0.8\linewidth}p{0.2\linewidth}}
\begin{aquote}{Nicolas Bourbaki}
This is a case where the name won't fit in nicely with the quote, and in this case the name will be moved to the next line.
\end{aquote}&
\tabbox[b]{\captionof{myquote}[Tag for table of quotes Nicolas Bourbaki]{}}
\end{tabular}

Here I refer to Quote~\ref{quot:xyz}

\end{document}

Answer 3

Here is a colorful suggestion using tcolorbox.

\documentclass[a4paper,11pt,oldfontcommands]{memoir}
\usepackage[most]{tcolorbox}

\usepackage{showframe}
\usepackage[colorlinks=true]{hyperref}

\newtcolorbox[auto counter,number within=section]{myquote}[2][]{%
colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,
enlarge left by=1cm,enlarge right by = -1cm,width=\linewidth-2cm,
title=Quote~\thetcbcounter: #2,#1}
\begin{document}
  \begin{myquote}[colback=yellow,label={myquote}]{user38934}
    This is some quote which is very nice
  \end{myquote}

  This is my quote numbered~\ref{myquote} here
\end{document}

Tweak as you like. Here an list of quotes is also possible. That would look like this:

\documentclass[a4paper,11pt,oldfontcommands]{memoir}
\usepackage[most]{tcolorbox}

\usepackage{showframe}
\usepackage[colorlinks=true]{hyperref} 

\newtcolorbox[auto counter,number within=section,list inside=myquote]{myquote}[2][]{%
colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,
enlarge left by=1cm,enlarge right by = -1cm,width=\linewidth-2cm,
title=Quote~\thetcbcounter: #2,#1}
\begin{document}
\tcblistof[\section]{myquote}{List of quotes}
  \begin{myquote}[colback=yellow,label={myquote}]{user38934}
    This is some quote which is very nice
  \end{myquote}

  This is my quote numbered~\ref{myquote} here
\end{document}

Without colours and number to the right and without numbers:

\documentclass{memoir}
\usepackage[most]{tcolorbox}

\usepackage{showframe}
\usepackage[colorlinks=true]{hyperref}

\newtcolorbox[auto counter,number within=section]{myquote}[1][]{%
colback=white,boxrule=0pt,enhanced jigsaw,fontupper=\centering\small\itshape,%fonttitle=\bfseries,
enlarge left by=1cm,enlarge right by = -1cm,width=\linewidth-2cm,
overlay={
\node[anchor=east,inner xsep=0pt] at ([shift={(10mm,0mm)}]frame.east) {\strut(\thetcbcounter)};
                },
#1}

% un-numbered quote.

\newtcolorbox{mynonumquote}[1][]{%
colback=white,boxrule=0pt,enhanced jigsaw,fontupper=\centering\small\itshape,%fonttitle=\bfseries,
enlarge left by=1cm,enlarge right by = -1cm,width=\linewidth-2cm,
#1}

\begin{document}
  \begin{myquote}[label={myquote}]
    This is some quote which is very nice
  \end{myquote}

  This is my quote numbered~\ref{myquote} here

  \begin{mynonumquote}
    This is some quote which is very nice
  \end{mynonumquote}

\end{document}

Answer 4

If you want your new quote to have the same formatting of regular quotes, I would do as follows:

\documentclass{memoir}
\usepackage{lipsum}
\usepackage{environ}
\newcounter{quote}
\NewEnviron{myquote}%define new quote env
{%
\par\noindent\refstepcounter{quote}%
\parbox{0.9\textwidth}{%
\begin{quote}\BODY%
\end{quote}%
}\hfill\parbox{.1\textwidth}{(\thequote)}}

\begin{document}
This is an example of what the subject might be.    
\begin{myquote}\label{example}
\lipsum[1][1-2]
\end{myquote}

Some text in-between.

\begin{quote}
\lipsum[1][1-2]
\end{quote}

As mentioned by me in quote No. \ref{example}, I responded to a stranger.

\end{document}

And the result is displayed below: