diff --git a/docs/01-tcc.Rnw b/docs/01-tcc.Rnw
index 2f4039dd45a3964993f5aed2bf7b8d9cd7091cf2..9b32b42e510213e1c5b2070116ff68040908e584 100644
--- a/docs/01-tcc.Rnw
+++ b/docs/01-tcc.Rnw
@@ -273,9 +273,13 @@ source("_setup.R")
 \begin{epigrafe}
     \vspace*{\fill}
 	\begin{flushright}
-		\textit{``The numbers are where the scientific \\ discussion
-		should start, not end.}\\
-		--- Steven N. Goodman
+          \textit{``Software is like sex: it's better when \\
+            it's free``}\\
+          --- Linus Torvalds \\[1cm]
+
+          \textit{``The numbers are where the scientific \\ discussion
+            should start, not end.''}\\
+          --- Steven N. Goodman
 	\end{flushright}
 \end{epigrafe}
 % ---
diff --git a/docs/01-tcc.pdf b/docs/01-tcc.pdf
index bf5ce5f1db9bdd05c93e2bc5ff484c6f66b5ac1d..b2d95fbecb9eecaefc127f8a9bdf14610aa6b539 100644
Binary files a/docs/01-tcc.pdf and b/docs/01-tcc.pdf differ