Nothing Is Impossible Doval MotivationOriginal vintage German motivational workplace poster issued by the Parker Holladay company in Berlin featuring an illustration of a plane flying over the sea at night with the quote on the waves below Fur den, der immer wieder versucht, gibt es kein "unmoglich" Doval For the one who keeps trying, nothing is "impossible". Parker Holladay issued this series of posters to promote the correct work ethic in the workplace creating Doval as the equivalent