One afternoon, as Pablo Picasso was leaving his neighborhood cafe, a patron asked him to draw something on the back of a paper napkin.
Pen in hand, Picasso made a quick drawing on the guy's napkin, and offered it back to him for one million dollars.
"One million dollars!?" the patron responded, flabbergasted. "But that only took you about 30 seconds to draw."
"Yes," replied Picasso, "but it took me 50 years to learn how to draw this in 30 seconds."