Richard P. Feynman, on scientific freedom and responsibility

"I can live with doubt and uncertainty. I think it's much more interesting to live not knowing than to have answers which might be wrong"

He proclaimed himself as being an "utter ignoramus about politics" but realized how important the science could be in promoting democracy and human rights:

"I feel a responsibility as a scientist who knows the great value of a satisfactory philosophy of ignorance, and the progress made possible by such a philosophy, progress which is the fruit of freedom of thought...to proclaim the value of this freedom and to teach that doubt is not to be feared, but it is to be welcomed as the possibility of a new potential for human beings. If you know that you are not sure, have a chance to immprove the situation. I want to demand this freedom for future generations".

Richard P.Feynman, Don't you have time to think?