Of all the colonies, only Rhode Island had religious freedom as secure as in Pennsylvania. Voltaire, writing of William Penn in 1733, observed: "The new sovereign also enacted several wise and wholesome laws for his colony, which have remained invariably the same to this day. The chief is, to ill-treat no person on account of religion, and to consider as brethren all those who believe in one God." One result of this uncommon freedom was a wide religious diversity, which continues to the present.