If you buy a sheet of tin for $10 and sell it for $11 and then discover that it really was a sheet of silver worth $1000, you have no valid claim that it was a mistake. You bought tin and you sold tin!

Think about all the things to which many people don’t attribute real value until they are lost: health, happiness, family, friends, freedom -- even gifts such as air, water, and sunshine.

Do yourself a favor: Learn to value these gifts even while you have them.