Now that I got that legendary saying out of the way. Let's talk beef. I'm pretty much a carnivore according to my mother. I can't really disagree. I love beef. You're probably well aware that there is good beef and bad beef. That's why there is Grade A Prime vs Choice, for example. There is a grading system for a reason. To assist you with knowing more about beef and what is what and where it comes from, I've attached the image below. This chart was what we use in school and it really is a good resource. Along with the images of beef and where it comes from, it shows a key to the recommended cooking methods for each cut.
You can also view the chart at a larger size at: http://www.blacklineangus.com/wp-content/uploads/2014/03/Angus-Beef-Chart.jpg