The cost of pleasure.

"...all pleasure must be bought at a price. The difference between illegitimate and legitimate pleasure is this: For legitimate pleasure, the price is paid before it is enjoyed. For illegitimate pleasure, the price is paid after it is enjoyed. Turning aside from instant gratification is one of the most difficult things to do. But this is where the battle is often won or lost."

-Ravi Zacharias
for the full article: rzim.com