You can do it too.
Yes -- the WHOLE world.
We did. We adopted three orphan children, who had almost no possibility of living happy productive lives otherwise.
We changed THEIR whole world.
You can read the story of two of these in the story here on this website.
You can read the story of our first adopted child, Daniel, here.
Oh yes -- they changed OUR world a lot too! I cannot imagine our lives without them.