Story of Einstein's Death

                                               

Einstein(sliding down the oxygen mask): Sauerstoff ist blockiert (Oxygen is blocked).
Nurse(smiling): Sorry, no German.
                                           The end!         
                                           

For People with no GK: 
Einstein in the last few moments of his life was attended by a nurse who did not know German. Therefore the last few words he uttered before his death were to remain a mystery forever. The above is my take on what the words could possibly have been.