I know a lot of people, professional atheletes as an obvious example, who just "coast by" in life and rely on their brawn and athleticism. Well, brawn and athleticism fade, and then what they got?
I know others who coast by on intelligence. And then even it fades, or their particular area of expertise becomes unneeded thanks to technological advances, and then what they got?
There's really no difference between beauty, brawn and intelligence.
So the moral of that story is not to rely on one aspect for too long, and try to have a well-rounded skill set.
That's certainly one moral. Another is to exploit every advantage you can while you can, cause it won't last forever.
True words.