“The tremendous success of that summer of 1848 spread by way of letters and government reports. The President in his State of the Union speech announces that the astonishing news from Sacramento is true. So the news is coming not only from the President, but most of all from these people who are writing these vivid reports. A guy writes home and he says, he says, 'You remember Dickson? He used to work for Ebeneezer?' He says, 'He has dug enough gold to weigh down a mule.' Now, that means something to people. A mule.”