The philosophy of the Middle Ages is the result of the meeting of ancient thought and Christianity. On the one hand, exploit old ideas and theories for reflection and deepening intellectual content of faith. On the other hand, some basic ideas Christian-like creation, Trinity, history of salvation and resurrection of the dead drive further critical development projects that served as a starting point. The confrontation with Platonism determined mainly early Christian thinking. In turn, the critical reception of Aristotle's philosophy reaches its culmination in the work of Thomas Aquinas. Christianity appears as the true philosophy. With the development of scientific method are increasingly specifying more clearly the differences between faith and science. Finally, the growing conviction of the intrinsic value of the created world, the human individual and natural reason paves the way for modern thought. The author analyzes the contributions of the leading figures of the time the big issues that mark the development of thought.