Traveling by train one time he could not find his ticket when conductor came by to punch it. Conductor told him not to worry he knew who he was and trusted him. Later when conductor came by Einstein was on his hands and knees looking for something. Conductor ask him what he was looking for. Einstein replied my ticket. Conductor said I told you I trust you. Einstein said its not about trust but direction. I have forgotten where I am going and my ticket has that on it.