Defining: “The Best”

What does it take to be the best? What does it mean when someone refers to someone as the best? I have a slight problem with using that word to describe someone. I was always told to do my best, not to strive to be the best.  Why is that? There will always be someone better than you, in some form or another.  If you think you’re the best in a certain video game and you set out to beat all your friends and you do, you can’t assume you’re the best in that particular game or in gaming in general, because I guarantee you will be beaten someday by someone better than you in some aspect at that same game. Think about it, in all sporting events, has there been only one person that has won the top spot year after year? No. They may hold the “crown” for a few years in a row, but not for a very long time. So what does it take to be “The Best”?