The most powerful influence on liberal reformist thought came from the work of the Egyptian Islamic scholar Muhammad ʿAbduh (1849–1905). Abduh viewed only Sharia rules pertaining to religious rituals as inflexible, and argued that the other Islamic laws should be adapted based on changing circumstances in consideration of social well-being. Following precedents of earlier Islamic thinkers, he advocated restoring Islam to its original purity by returning to the Quran and the sunna instead of following the medieval schools of jurisprudence. He championed a creative approach to ijtihad that involved direct interpretation of scriptures as well as the methods of "takhayyur" and "talfiq".