Salesian College, Celbridge, is an all boys Catholic Secondary School under the Trusteeship of the Salesians of Don Bosco.

St. John Bosco, the father of the Salesians, who lived in Italy during the 19th century, developed a particular approach to education, which he called the Preventive System. The Preventive System, preventive comming from two Latin words prea + venire, meaning go before or to anticipate the needs of another, takes as its aim the formation of honest citizens and good Christians. In this approach, reason, religion and kindness are core values.

Reasonableness and fairness guide the student and teacher as they work together to build and environment that encourages personal responsibility and promotes learning.

Religion emphasizes the goodness and potential of each person. God is the source of our existance. to be truly human is to learn to love God and each other with a spirit of hope, joy and generosity.

St. John Bosco emphasised the quality of the relatioship between students and educator. He encouraged an attitude of loving-kindness where a relationship of trust, openess and understanding could develop between the educator and the student both inside and outside the classroom