This quote supposedly comes from Albert Einstein (I wonder if that's true though), and it goes something like this: "I didn't know it was impossible when I did it". The sentence starts reading in one direction, but then it continues 180º rotated, proving that things that seem impossible (eg. to read what's written here) might just be possible. I really like this quote – regardless of who came up with it – because it always reminds me of how important it is not to take things for granted.
The poster was created for the 7. Typochondria Exhibition.