"This branch of Deism is the oldest and closest to the “textbook” definition of Deism. Most Classical Deists base their belief in God on reason, nature, and experience. Classical Deists tend to take a balanced approach to belief in that they are both critical of revealed religion, and they are promoters of reason and Deism. The Deism of Thomas Paine would be considered Classical Deism by most, but not all, Deists. Even among Classical Deists there exists wide variety of beliefs, and not all Classical Deists agree on either their beliefs or their approach to Deism. Contemporary Classical Deism is probably best represented by the World Union of Deists."