# How to use memoir environment to set a motto for a chapter? [duplicate]

I would like to set a motto after the chapter title. While the title is set left-aligned the motto should be set left-aligned too, but the longest line of the motto should be aligned to the right outer border of the page:

The Title is Great
That is the subtitle if there is one

The Authors name

There was a young man of Quebec
Who was frozen in snow to his neck.
He replied: ‘Yes, I is,
But we don’t call this cold in Quebec.

1. Maybe the section title
And last but not least the text of the essay and what else I do
not know...


This is a working example, but what I need to know is, how to set the whole 'block' with the poetry to the right border (that the longest verse hits it)?

\documentclass[10pt,twoside]{memoir}
\usepackage{blindtext}
\newcommand{\chapterauthor}

\makeatletter
\DeclareRobustCommand\authortoctext[1]{%
\rightskip \@tocrmarg\relax
\makeatother
\newcommand\authortoc[1]{\needspace{3\baselineskip}%
\gdef\chapterauthor{#1}%
\needspace{2\baselineskip}%   Vgl. http://tex.stackexchange.com/questions/134016
#1}}}
\renewcommand{\afterchaptertitle}{%

\vskip\onelineskip\begin{large}\normalfont\textit{\Large\chapterauthor}\end{large}
\vspace{4ex}
\vskip\onelineskip}

\newcommand\Chapter[3][]{
\chapter[%
\if\relax\detokenize{#1}\relax #2%
\else #1\fi. #3]{#2\\[2ex]\Large\Large#3}
\chaptermark]{\markboth{%
\if\relax\detokenize{#1}\relax  #2%
\else  #1\fi }{}%
}}

\begin{document}
\authortoc{The Author}
\chapter[]{The Title of the Chapter}
\settowidth{\versewidth}{I will pour out my spirit on all people}
\begin{verse}
In the last days, God says, \\
I will pour out my spirit on all people. \\
Your sons and daughters will prophesy, \\
\ldots \\
And everyone who calls \ldots ’’\,’
\end{verse}

\section*{The section Title}
\blindtext


\end{document}