This book has been prepared on the basis of a course of lectures on the history of Western philosophy, which the author, the head of the department of philosophy, reads at PSTGU. Outlining in detail the main philosophical teachings of Antiquity, the Middle Ages and the Renaissance, V. P. Lega shows the connection between the philosophical issues under consideration and Christian theology , in particular - with the teaching of the Church Fathers. Therefore, where necessary, the author pays special attention to the problems of Christian philosophical apologetics - issues of the relationship between faith and reason, evidence of the existence of God, the existence of evil and suffering in the world, etc. Recommended for students of higher educational institutions, as well as for everyone interested in philosophy.