Day One Down, Three Years (minus one day) To Go

I know that everyone who is in a position to be able to dispense advice about law school has said to pay no attention to what other people say in class because they have NO IDEA what they're talking about. But why is that they sound exactly like they do?

Also, I do not think it's nice of professors to say things on the first day of class such as, "I would love to tell you that your grades don't matter, but that would be dishonest." He went on to explain that one day, we will look back on it and our grades will seem utterly trivial. Except that nobody will ever hire us if we don't have good grades. In fact, that's pretty much all they look at. I guess it's easy to see how grades will seem trivial when you're standing on a street corner begging for change, degree rendered useless, three years of your life wasted. Thanks for the motivation.