Friedrich Daniel Ernst Schleiermacher was a German theologian and philosopher known for his impressive attempt to reconcile the criticisms of the Enlightenment with traditional Protestant orthodoxy. He also became influential in the evolution of Higher Criticism. His work also forms part of the foundation of the modern field of hermeneutics. Because of his profound impact on subsequent Christian thought, he is often called the "Father of Modern Protestant Theology", and is considered an early leader in liberal Christianity. The neo-orthodoxy movement of the twentieth century, typically (though not without challenge) seen to be spearheaded by Karl Barth, was in many ways an attempt to challenge his influence.