diff --git a/shell.tex b/shell.tex
index cda5f93..f588e7b 100644
--- a/shell.tex
+++ b/shell.tex
@@ -121,6 +121,11 @@
 \newpage
 \thispagestyle{empty}                  % eine Leerseite
 
+\begin{quote}
+\emph{The best way to become acquainted with a subject is to write a book about it.
+\begin{flushright}(Benjamin Disraeli)\end{flushright}}
+\end{quote}
+
 ~\vfill
 
 \footnotesize