Watch Timothy Leary's famous "Turn on, tune in, and drop out!" speech from the Human Be-In in San Francisco, CA, then see him discuss the concept 20 years later in a 1987 interview. Leary comments on the Baby Boomers who participated in the Human Be-in and discusses the political climate during the late 1960's. On January 14, 1967, the Human Be-In took place,helping to launch the Summer of Love when 100,000 young people came to Haight-Ashbury and Berkeley.