Knowing.

Hoc solum scio quod nihil scio.

Image: Title pages of Howard's, The State of The Prisons (1929) and a cat's eye.

While I was actually trying to draw the cat's attention to the window so that I could get a macro of the eye from the side, it looks as though I am showing you the street that I live in.

Problems: the image that I originally intended for today was a bust. Anyone know how to use a second image as a layer mask?