This text presents three recently discovered public lectures from the 60s in which Feynman addresses a non-scientific audience. Feynman attempts to engage an audience with the questions that most inspired and troubled him. Beginning by asking what is the value of science, Feynman goes on to address various related questions: can scientific views be reconciled with religious beliefs? Why in this supposedly scientific age is there such widespread fascination with flying saucers, astrology and martian invasions? How does the media betray the public? What is the value of doubt?