Some of us were born with pretty faces and dull brains, while some of us were born with the reverse.
Some of us were born with both, and I mean 'pretty faces and sharp brains', yet laziness wouldn't just let us be. That our 'laziness' needs to be shapened to hardwork....yes we need to work hard on it to become hardworking.
Life is just not balanced, and we realize that if God made us perfect, there would be nothing for us to work on. There would be nothing for us to change. There would be nothing interesting.