6 The spoken word cannot be revised
I never really though of speech like this, but it is partially true. Once you say something, it is out there. But, you can revise it. I think that apology is a great example of this. Maybe you said something mean to someone, but after a while you realize you shouldn't have done that, so you apologize. I see this as a revision of words. To make this a complete revision, however, there must be forgiveness.