This one is a bit cheesy but it's still one of my favorites
“The Best There Ever Was”
Always claim to be the best there ever was
Even if you doubt it’s true
For it causes men to stand in pause
And take a look at you.
A tinge of fear will reach their spines
As they stare into your heart
For if history books are to bear your lines
They must decide which part
Are you an Actor? Scholar? Business man?
An explorer of King Tut’s Tomb?
Or are you no better or worse than any other man
Whose sole achievement was escaping the womb?
Don’t let them tell you you’ve nothing to give
Especially if the claim has just cause
For if you stand undefeated for as long as you live
You are the best there ever was.