An Arab while crossing a desert came across a huge rock half buried in the sand. Written on the boulder was:
TURN ME OVER AND YOU WILL BENEFIT FROM IT
The Arab felt assuming there was a great treasure hidden underneath it worked mightily to turn it over. He succeeded after several hours. But there was no treasure there, only an inscription on the underside of the rock:
GREED IS THE ROOT OF ALL EVIL REMEMBER THIS AND YOU WILL BE A BETTER MAN.