French philosopher Gabriel Marcel (1889-1973) described man's place in the world in terms of such fundamental human experiences as relationships, love, fidelity, hope, and faith. His brand of existentialism was said to be largely unknown in the English-speaking world, where it was mistakenly associated with that of Jean-Paul Sartre. Marcel's view of the human condition was that "beings" are beset by tension, contradiction and ambiguity. He was also interested in life's religious dimension and was considered the first French existentialist philosopher.

Gabriel Marcel was born in Paris on Dec. 7, 1889, the only child of a distinguished diplomat. His mother died when he was 4, and he was raised by an aunt whom his father married. Although he had little visual memory of his mother, Marcel described her continued "spiritual presence" during his youth as an important influence on his thoughts--giving rise to an awareness of the "hidden polarity between the...