“If in any state there is a body of men who possess unlimited political power, those over whom they rule can never be free.For, the one assured result of historical investigation is the lesson that uncontrolled power is invariably poisonous to those who possess it. They are always tempted to impose their canon of good upon others, and in the end, they assume that the good of the community depends upon the continuance of their power. Liberty always demands a limitation of political authority.”