1. Grab the nearest book.
2. Open the book to page 23.
3. Find the fifth sentence.
4. Post the text of the sentence in your journal along with these instructions.

The following sentence is quoted from "Core J2EE Patterns Second Edition".

One is including application logic that executes when the controller or view is processed, disallowing access.

Without the context, understand the fifth sentence on page 23 is almost impossible, unless you happen to have the same book as I do.
This is the nearest book in my office. Which one is it in my home?