Nearly everything we encounter exhibits regularities along with random or incidental features. All around us we find superpositions of law and chance - or signal and noise, as in the case of music and static on the radio. In these lectures, Murray Gell-Mann discusses these contrasts as they apply to everything from the universe as a whole to living organisms and human culture. Gell-Mann examines the meanings and relevance of concepts such as complexity, entropy, and individuality, and presents examples of regularities like "self-similarity" - or "scaling" - that are widespread in physical and biological science and in human affairs. A pioneer in the field of subatomic physics, Murray Gell-Mann was awarded the Nobel Prize in Physics in 1969 for his quark theory of matter. Gell-Mann coined the term "quark" after the discovery of some 100 particles within the atomic nucleus. Author of 'The Quark and the Jaguar', Professor Gell-Mann is Distinguished Fellow and Trustee at the Santa Fe Institute. NOTE: Please excuse the production quality of some of our older videos. They were transferred from our video tape archive.