Those types of 'lessons' are what I think of, when I think of this one:
"The only thing...more expensive than education is ignorance."~Ben Franklin. "We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light." ~ Plato
Hey, check out my mega multi devastator cannon. It's wicked. It makes this tiny ad look weak:
Heat your home with the twigs that naturally fall of the trees in your yard