The squeaky wheel may get the most oil, but it's also the first to be replaced.
Know why certain foods, such as truffles, are expensive. It's not because they taste best.
I've never found an interesting person with a foul mouth.
Be sure to expose yourself to criticism: A fine polish requires an abrasive.
Know how to treat frostbite until you can get indoors.
Know how to drive safely when it's raining or when it's snowing. The two conditions are different.