diff --git a/book/security.rst b/book/security.rst
index 1107c941396..b1e7aebbe75 100644
--- a/book/security.rst
+++ b/book/security.rst
@@ -20,8 +20,8 @@ perform a certain action.
 .. image:: /images/book/security_authentication_authorization.png
    :align: center
 
-Since the best way to learn is to see an example, start by securing your
-application with HTTP Basic authentication.
+Since the best way to learn is to see an example, just imagine that you want
+to secure your application with HTTP Basic authentication.
 
 .. note::