Step 1: Picture
I'm sick of my face, so lets use my roommate's.
Step 2: Tweeking Your Photo
First, Grayscale the image. Hint: play around with the contrast/brightness of your image, or Equalize the image to make the shadows and relief more pronounced.
After you are satisfied with the Grayscale, Posterize the image. REMEMBER HOW MANY LAYERS YOU DECIDE UPON. The less layers you posterize with, the easier the following steps will be. The more layers you use, the more impressive the effect will be. For this case, I chose 4 layers.
Play with your image until is just as your heart desires.
Step 3: Text
Open your text in Microsoft Word or a similar program. Remove all paragraphing so the text is uniform. I used a long exerpt (a chapter from Thoreau's "Walden"), but for this example I'll use something shorter, but of the same philosophical and poetic caliber, the lyrics to the Fresh Prince of Bel-Air theme song, repeated.