Still further titles have been derived from dogmas and doctrines, such as, the Immaculate Conception. Dogmas and superstitions greatly restricted mental creativity. However it remained legal to enslave people of other religions and dogmas. Waldo condemned what he considered as papal excesses and Catholic dogmas, including purgatory and transubstantiation. Most dogmas have been promulgated at ecumenical councils. Consequently, Pyrrhonists withhold assent with regard to non-evident propositions, i.e., dogmas. Celsus initiated a critical attack on Christianity, ridiculing many of its dogmas. We had no dogmas, no pioneering thinkers and no leaders. His Marxism is encumbered by few dogmas. Frederick fully adopted the Reformed dogmas. By 1998 it was doubtful the Vatican was going to consider new Marian dogmas. Furthermore, she is related to four different dogmas and numerous Marian titles. Musandino is the renowned master, destined to spread the dogmas of medicine. "Two Dogmas" has six sections.