When you memorize the speech, you truly learn each word. You can make your way in between all the commas, the emotions that inspired Shakespeare take control of your tongue and your voice. Before you memorize and act the speech out, you don’t really know what the character was thinking, you can only guess. But when you are acting it out, you become the character, you absorb the strength the words carry and you speak them loud. You are aware of the action every word takes once it slipped your mouth, and only then do you really understand the importance of every comma, every emphasis, every word, every repetitions, and only now can you really see what Shakespeare passed through his complex Speech.