Jalaluddin Rumi said this quote

Without demolishing religious schools (madrassahs) and minarets and without abandoning the beliefs and ideas of the medieval age, restriction in thoughts and pains in conscience will not end. Without understanding that unbelief is a kind of religion, and that conservative religious belief a kind of disbelief, and without showing tolerance to opposite ideas, one cannot succeed. Those who look for the truth will accomplish the mission.Mevlana Jalal ad-Din RUMI