Doubt and uncertainty
Richard Feynman discusses his life-long search for scientific answers, but says that there is no need to have the answer to everything. He has different levels of certainty about different questions, and admits he is not "absolutely sure" about anything. Feynman is more interested in living a life full of doubt than drawing conclusions that might be wrong. He says he is not frightened by not knowing things.
Available since: Sat 10 May 2008
This clip is from
Professor Richard Feynman of Caltech talks about his life and career.
First broadcast: 23 Nov 1981
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