Isaac Asimov was one of the greatest science fiction writers and thinkers. One of his best know works was the Foundation Trilogy, which challenges readers to rethink history, society, and technology. This OpenCulture post, Free: Isaac Asimov’s Epic Foundation Trilogy Dramatized in Classic Audio, provides links to an Internet Archive version of Foundation by the BBC from 1973. This is a dramatized version that includes sound effects and music.