From the gravestone or tomb of an unknown monk...

When I was a young man I thought I could change the world – but I found I couldn’t.
As I grew older I thought I could change the community – but again I found I could not.
As I grew older still I thought perhaps I could change my family – but alas I could not.
It was only upon my death bed that I realized if I had only changed myself, that I might 
have changed my family and they might have changed the community and that might have
changed the world.