Saint John Bosco, father and teacher of the young, was an Italian priest born in 1815 near Turin. He accepted the obstacles of the social and historical context of the time he lived in as a challenge to devote himself to the upbringing and salvation of the many abandoned young children that he encountered. In this way he built the preventive system, an educational system based on the values of faith, reason and kindness, which he used to guide his youth to good. Firmly believing that every human is created in the image of God, he believed that every human being possesses a drop of kindness, which should be fostered. His pedagogy is the pedagogy of trust, love and hope in young people, with the foundations built on the figure and life of Jesus Christ. Don Bosco's concepts have been preserved in the Salesian Order, an order of priests that he founded, and the relevancy of the preventive system is also marked by contemporary educators. This paper will demonstrate the ideas and values that the preventive system was built on. The aim of the research section of the paper was to explore the values, pedagogical methods and tendencies of lower primary school teachers in public schools and those of members of the Salesian oratory and to question the applicability of don Bosco's preventive system in today's education. The research was conducted on a sample of 6 examinees. In this research, a qualitative research method and a semi-structured interview were used. The results indicate that the period of Bosco's work can be linked to today's system of values. Individual approach to a child and trust are both the foundations of Bosco's preventive system and a notable part of contemporary teaching methods. The implications of the research can help educators, parents, teachers and experts in the practice of teaching.