German monk Martin Luther challenged the dogmas of Roman Catholicism and the authority of the pope, in his Ninety-five Theses, and was thus excommunicated. His German translation of the Bible enriched the German culture, and his marriage set an example for clerical marriage. His teachings are now known as Lutherans.
Søren Kierkegaard was a Danish philosopher, religious author, poet, theologian, and social critic. He is widely regarded as the first existentialist philosopher. Many 20th-century philosophers drew concepts from Kierkegaard. Those influenced by Kierkegaard include Paul Feyerabend, Ludwig Wittgenstein, Jacques Ellul, and Jorge Luis Borges. Kierkegaard also had a major influence on psychology and is considered the founder of Christian psychology.
11 Adi Shankara
Thirteenth-century Portuguese Catholic priest Anthony of Padua was the friar of the Franciscan Order. He is remembered for his self-less devotion to the poor and the sick and is revered as the patron saint of lost items. He was declared a Doctor of the Church in 1946.
Hildegard of Bingen was a German writer, composer, Christian mystic, visionary, philosopher, polymath, and Benedictine abbess of the High Middle Ages. Apart from being the most-recorded composers of sacred monophony in modern history, Hildegard of Bingen is also widely regarded as the founder of scientific natural history.
14 William Penn
William Penn was a writer and one of the earliest members of the Quakers. He is credited with founding the Province of Pennsylvania. He also oversaw the planning and development of the city of Philadelphia. Penn has several universities and schools named in his honor, including the William Penn University in Iowa.
Born as an illegitimate child of a priest from Rotterdam, Desiderius Erasmus later grew up to be a significant figure of the northern Renaissance. He is remembered for his research on free will and for being the first to edit the New Testament, replacing traditional elements with new-age humanism.
16 George Pell
English scholar, William Tyndale, became a leading figure in the Protestant Reformation in the 16th century. He is known for translating the Bible into English. An active writer, he wrote extensively on political issues and religion. He was accused of heresy and condemned to be burned to death. Executed in 1536, he is honored as a martyr.
Albert Schweitzer was an Alsatian polymath who won the Nobel Peace Prize in 1952 for his philosophical work, Reverence for Life. He is credited with founding the Albert Schweitzer Hospital, which was a direct result of his philosophical expression. Schweitzer is also credited with influencing the Organ reform movement, which began in the mid-20th-century.
Origen was an early Christian ascetic, scholar, and theologian. Also a prolific writer, Origen wrote as many as 2,000 treatises, including biblical exegesis, textual criticism, biblical hermeneutics, spirituality, and homiletics. Origen is widely considered one of the most prominent Christian theologians, although his teachings on the existence of souls were vehemently rejected by the Church.
28 Francis Chan
29 Abū Ḥanīfah
Ahmed Raza Khan Barelvi, also known as Ala-Hazrat, was a renowned Islamic scholar and an Urdu poet. Born in Bareilly, British India, he belonged to a family of Rohilla Pushtuns who had migrated from Qandahar. He wrote about various subjects such as philosophy, science, and astronomy.
33 John Hagee
Owing to his quality classical education, Anselm of Canterbury became one of the finest Latinists of his time. As Archbishop of Canterbury, he resisted the English kings and was exiled. He is now remembered as a significant figure in the Investiture Controversy, which pitted the king against the pope.
42 Saint Cyril
43 R. C. Sproul
44 Max Lucado
Medieval French philosopher, theologian, and poet Peter Abelard was born to a knight but gave up his inheritance to study philosophy and logic. He fell in love with his pupil, Héloïse, but her uncle got Abelard castrated, following which Abelard became a monk and made Héloïse a nun.
46 Israr Ahmed
Ahmad ibn Hanbal was an Arab Muslim theologian, jurist, hadith traditionist, and ascetic. He is credited with founding one of the four prominent legal schools of Sunni Islam, the Hanbali school of Sunni jurisprudence. A highly active and influential scholar, Ahmad ibn Hanbal is widely regarded as one of the most respected intellectual personalities in the history of Islam.
48 Paul Tillich
German-American theologian and philosopher Paul Tillich is remembered for his work in the field of Christian existentialism and for concepts such as the method of correlation. His notable works, such as The Courage to Be and the three-volume Systematic Theology, has inspired intellectual thinkers and commoners alike.