12. Time is a valuable thing. Days pass by & we cannot return to them. Today, we’re just kids. Tomorrow, we’re full-grown adults. When we’re young men & women, nobody can go back to being children. The same things apply to the heritage of a nation. We must be diligent & do our best in taking good care of it. We must be diligent in our training. We must keep on trying to understand every chapter to the best of our abilities.