Feet, for tens of thousands of years, had clogged and shuffled in the mud - and held down the minds which, for an equal time, had been fit for the companionship of the stars. Grimly, Man had instinctively sought to circumvent the prison bars of ordinary speech. Semantics, symbolic logic, psychoanalysis - they had all been devices whereby speech could either be refined or by-passed The same basic developments of mental science that had brought about the development of the Seldon Plan, thus made it also unnecessary for the First Speaker to use words in addressing the Student.