A father and son went fishing one day. While they were out on the water, the boy suddenly became curious about things in general and started asking all sorts of questions. He asked his father, "Why does the boat float? The father replied, "Don't rightly know son."

A little later, the boy looked at his father and asked, "How do fish breath underwater?" Once again the father replied, "Don't rightly know son." A little later the boy asked his father, "Why is the sky blue?" Again, the father repied. "Don't rightly know son."

Finally, the boy asked his father, "Dad, do you mind my asking you all of these questions?" The father replied, "Of course not, if you don't ask questions, you never learn nothin'."