The book "Is life worth living without immortality? A lecture delivered before the Independent Religious Society, Chicago" is written by Mangasarian, M. M. (Mangasar Mugurdych). In this moving lecture, the author explores eternal questions about the meaning of life, belief in immortality, and the nature of human existence. Mangasarian provokes readers to think whether happiness and satisfaction are possible without the idea of eternal life and immortality. He expresses deep and philosophical considerations that force you to rethink your view of life and its meaning. The book "Is life worth living without immortality?" is an essential work for those interested in the eternal questions of philosophy, religion, and the deeper meaning of human existence.