Really the truth is just a plain picture. A plain picture of, let's say, a tramp vomiting in the sewere. You know, and next door to the picture Mr. Rockefeller or Mr. C. W. Jones on the subway going to work. You know, any kind of picture. Just make a collage of pictures.
There is a reason you keep hearing about the power of educating girls in the developing world. Its a reason so simple that you will probably view it with suspicion, as I once did. It's this: educating girls works. Really works.