The paper presents new opportunities for peace education introduced in foreign language lessons and ethics classes. It based on the idea of philosophizing with students as a way of getting to know the views of I. Kant and J.G. Herder, and sensitizing students to the importance of peace in the modern world. The peace education in the class room offers opportunities to develop skills such as discussing, arguing, logical thinking. In the first part of the paper has been made a general presentation of selected papers of Kant and Herder about peace. The analysis of the views of Kant and Herder on peace can initiate the discussion by students on the contemporary situation of humanity and the world, interpersonal and social relations