diff --git a/chapters/authorization-authentication.adoc b/chapters/authorization-authentication.adoc
index f659d6cc..fec246fd 100644
--- a/chapters/authorization-authentication.adoc
+++ b/chapters/authorization-authentication.adoc
@@ -68,8 +68,9 @@ validation mechanism from being used as a vulnerability.
 
 ((("stateless verification")))The bitcoin transaction script language is
 stateless, in that there is no state prior to execution of the script,
-or state saved after execution of the script. Therefore, all the
-information needed to execute a script is contained within the script. A
+or state saved after execution of the script. All the
+information needed to execute a script is contained within the script
+and the transaction executing the script.  A
 script will predictably execute the same way on any system. If your
 system verifies a script, you can be sure that every other system in the
 Bitcoin network will also verify the script, meaning that a valid