If you don't walk close to the edge, you'll miss plenty. If you get too close, though, you'll fall over. It seems to me that the only smart ones who come along are the ones who remain aware of the mystery, the ones in awe of all that they don't know.
Love is the best and I suppose that there's only one real rule. Don't withhold it as a tactic. It's okay to love and not get it back. That's where the blues comes from.
Talk to your dog and your cat. They don't mind.