Some Hasidic "courts", and not a few individual prominent masters, developed distinct philosophies with particular accentuation of various themes in the movement's general teachings. Several of these Hasidic schools had lasting influence over many dynasties, while others died with their proponents. In the doctrinal sphere, the dynasties may be divided along many lines. Some are characterized by "Rebbe"s who are predominantly Torah scholars and decisors, deriving their authority much like ordinary non-Hasidic rabbis do. Such "courts" place great emphasis on strict observance and study, and are among the most meticulous in the Orthodox world in practice. Prominent examples are the House of Sanz and its scions, such as Satmar, or Belz. Other sects, like Vizhnitz, espouse a charismatic-populist line, centered on the admiration of the masses for the Righteous, his effervescent style of prayer and conduct and his purported miracle-working capabilities. Fewer still retain a high proportion of the mystical-spiritualist themes of early Hasidism, and encourage members to study much kabbalistic literature and (carefully) engage in the field. The various Ziditchover dynasties mostly adhere to this philosophy.