This symposium embodies the Evanston lectures of 1947 in which twenty-two Christian leaders, mostly clergymen and educators discuss the challenge presented to Christianity by secularism. Secularism is defined as ""an evasive, often unconscious philosophy which does not deny but ignores the presence and ethical influence of a living God"". Secularism depends upon education, science, personal aggressiveness and organized religion. It is practical atheism. In the various lectures it is clearly pointed out how secularism has become the supporting atmosphere of our culture in education, in literature, in the motion pictures, in politics, in industry, in social issues and in the church itself. Then the writers present the Christian religion with its pursuit of spiritual ideals and its translation of faith into life as the way to combat and overcome this all-pervading philosophy of life. Among the contributors to the volume are Sherwood Eddy, F. Ernest Johnson, G. Bromley Oxman, Luman J. Shafer and George N. Shuster. Preachers and lecturers dealing with contemporary problems will find much ammunition and illustrative material in this book.