Today's education has three impediments to meaningful and sustainable educational reform; first, the lack of precise and accurate anthropology of learners; second, dilemma between constructivism-leading academy and behaviorism-dominating classrooms; third, the lack of philosophy of education in theory and practice. The Montessori system was built upon the Christian theological anthropology, which uncovers that the main source of failure in our education is humanity's original sin and sins preventing us from fulfilling the Imago Dei or the reciprocating self. This article highlights why the Montessori method is a feasible school reform model by briefly examining Montessori's anthropology centering on Imago Dei, teacher's respect for the child resulting in education through being and embodiment, and systematized teacher-training system.