First of all, it always seems to be humans who are giving him all this wonderful advice. How to spend his time. What to eat. The miracles somehow obtained through moving one's body through space, which the Bear finds especially superstitious.
The Bear always asks some professional advice-giver (and they're everywhere), "Are you a Bear?" The answer is always no. So, the Bear must ask: why should he listen to advice on how to be a Bear from a human?
Sometimes the Bear forgets to eat for
"You should regulate the amount of sleep you get. Eight to ten hours every night."
"Have you just completed a 165,000 word novel?"
"Maybe an 80,000 word novel?"
"No, I don't really-"
"Maybe you would if you weren't sleeping your life away. Are you a Bear?"
"I already answered that one."
"Then stop telling me how to be a Bear. Somehow, the Bear has managed to live a fairly rich life without your help. He continues to do so. Do you write an ephemeris?"
"The Bear is sorry, but he is arresting you for Bear malpractice. You will be sentenced to have a Bear tell you how to be a human. First off. Go catch a horse and eat it."
"I can't - won't do that!"
"Consider it exercise. Exercise will solve all of your problems. And the Bear bets no one has ever told you that before, right? Eat plenty of fresh salmon from the stream."
"I don't know how to fish, and I certainly won't eat raw fish."
"You will die."