In the sphere of ideas, indeed, Mahomet gave his people nothing original, for his power did not lie in intellect, but in action. His mind had not passed the stage that has just exchanged many fetishes for one spiritual God, still to be propitiated, not alone by sacrifices, but by prayers, ceremonies, and praise. In the world of action lay the strength of Islam and the genius of its founder; it is therefore in the impress it made upon events and not in its theology and philosophy that its secret is to be found. But besides the acceptance of one God as Lord, Islam forced upon its devotees a still more potent idea, whose influence is felt both in the spheres of thought and action.