A father and son went fishing one day. While they were out in the boat, the boy suddenly became curious about the world around him. He asked his father:
- How does this 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, you don't ask questions, you never learn nothin'.