What Makes the Hero?

Bilbo is the example Tolkien's showing us that regretting and fearing our normal human reactions are normal. There's no need to feel bad about that. The hero doesn't quit and turn around. It doesn't turn around, quit, go home and stop. But anyway, maybe we can get a quote on that. Are goblins orcs? Or are they different? I'm not sure. They're similar. At the very least, they're very similar.