Mere Christianity is a theological book by C. S. Lewis, adapted from a series of BBC radio talks made between 1941 and 1944,[2] while Lewis was at Oxford during the Second World War.[3] Considered a classic of Christian apologetics, the transcripts of the broadcasts originally appeared in print as three separate pamphlets: The Case for Christianity (Broadcast Talks in the UK) (1942), Christian Behaviour (1943), and Beyond Personality (1944).
Mere Christianity is C.S. Lewis's forceful and accessible doctrine of Christian belief. First heard as informal radio broadcasts and then published as three separate books - The Case for Christianity, Christian Behavior, and Beyond Personality - Mere Christianity brings together what Lewis saw as the fundamental truths of the religion. Rejecting the boundaries that divide Christianity's many denominations, C.S. Lewis finds a common ground on which all those who have Christian faith can stand together, proving that "at the centre of each there is something, or a Someone, who against all divergences of belief, all differences of temperament, all memories of mutual persecution, speaks the same voice."