David Livingston, one of the most virile Christian leaders of all time, had as his motto "Fear God, and work hard." He learned it in his austere home in Scotland and practiced it all his life. Livingston belongs to that select company of souls who not only know that not only good intentions are not enough but know also that their most strenuous efforts will not complete the really big jobs. Even so, they tackle them with all the energy they have and for all the days God gives them to live.