Understanding Your Professors

You'll be using one of the leading textbooks in the field. I used it as a grad student
If you follow these few simple rules, you'll do fine in this course. If you don't need any sleep, you'll do fine in the course.
The gist if what the author is saying to what's most important.  I don't understand the details either.
Various authorities agree that ... My hunch is that ...
The answer to your question is beyond the scope of this class. I don't know.
You'll have to see me during my office hours for an answer to your question. I don't know.
In answer to your question, you must recognize that there are several disparate points of view. I really don't know.
Today we are going to discuss a most important topic.  Today we are going to discuss my dissertation.
Unfortunately, we haven't the time to consider all of the people who made contributions to this field.    I disagree with what roughly half of the people in this field have said.
We can continue this discussion 1. I'm tired of this - let's quit.
2. You're winning the argument - let's quit.
Today we'll let a member of the class lead the discussion.  It will be a good educational experience. I stayed out too late last night and didn't have time to prepare a lecture.
Any questions ?   I'm ready to go.
The implications of this study are clear I don't know what it means either, but there will be a question about it on the test.                
The test will be 50-question multiple choice.                                                    
The test will be a 60-question multiple guess,plus three short answer questions (1,000 wordsor more) and no one will score above 75 percent.
The test scores were generally good.  Some of you managed a B.
The test scores were a little below my expectations. Where was the party last night ?
Some of you could have done a little better. Everyone flunked.
Before we begin the lecture today, are there any questions about the previous material ? Has anyone opened the book yet ?
According to my sources ...  According to the guy who taught this class last year ...
It's been rewarding to teach this class. I hope they find someone else to teach it next year.