On an unmarked tombstone in Westminster Abbey, there is this epitaph:

When I was young, my imagination was never limited. I dreamed Change the world.

When I matured, I found that I could not change the world. I shortened my vision and decided to only change my country.

When I entered my twilight years, I found that I could not change my country. My last wish was just to change my family. However, this is also impossible.

As I lay on my deathbed, I suddenly realized: If I had only changed myself first, then by example I would have changed my family;