Tolerance, a term which we sometimes use in place of the words respect, mercy, generosity, or forbearance, is the most essential element of moral systems; it is a very important source of spiritual discipline and a celestial virtue of perfected people.

Muhammed Fethullah Gülen (1941 CE-2024 CE), Muhammed Fethullah Gülen was a Turkish Muslim scholar, preacher, and leader of the Gülen movement who as of 2016 had millions of followers. Gülen was an influential neo-Ottomanist, Anatolian panethnicist, Islamic poet, writer, social critic, and activist–dissident developing a Nursian theological perspective that embraces democratic modernity.