" Of all the work that is done or that can be done for our country, the greatest is that of educating the BODY, the MIND, and above all the CHARACTER, giving spiritual and moral training to those who in a few years are themselves  to decide the destinies of the nation. " ~ Theodore Roosevelt 

What this quote trying to say that having a good mind , body, and character is the greatest thing that help others become one too. However, this is important because it creates our destinies to our nation  ( who we are ) .  For example , doing something nice is an example to others to do the same thing.  All the greatest thing that our country has given us a nice , clean mind , body , and character .