Change definitely is more effective if it starts from within, how can one think to change the world around us if we ourselves have not made any changes within.

The words below are said to be written on the tomb of an Anglican Bishop in the crypts of Westminster Abbey in London, England.

When I was young and free and my imagination had no limits, I dreamed of changing the world. As I grew older and wiser, I discovered the world would not change, so I shortened my sights somewhat and decided to change only my country.
But, it too, seemed immovable.
As I grew into my twilight years, in one last desperate attempt, I settled for changing only my family, those closest to me, but alas, they would have none of it.
And now as I lie on my deathbed, I suddenly realize: If I had only changed my self first, then by example I would have changed my family.
From their inspiration and encouragement, I would then have been able to better my country and, who knows, I may have even changed the world.