“If we suppress all discussion, all criticism, proclaiming "This is the answer, my friends; man is saved!" we will doom humanity for a long time to the chains of authority, confined to the limits of our present imagination. It has been done so many times before.”
The Value of Science (1955)
Context: We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.
... It is our responsibility to leave the people of the future a free hand. In the impetuous youth of humanity, we can make grave errors that can stunt our growth for a long time. This we will do if we say we have the answers now, so young and ignorant as we are. If we suppress all discussion, all criticism, proclaiming "This is the answer, my friends; man is saved!" we will doom humanity for a long time to the chains of authority, confined to the limits of our present imagination. It has been done so many times before.
... It is our responsibility as scientists, knowing the great progress which comes from a satisfactory philosophy of ignorance, the great progress which is the fruit of freedom of thought, to proclaim the value of this freedom; to teach how doubt is not to be feared but welcomed and discussed; and to demand this freedom as our duty to all coming generations.
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Richard Feynman 181
American theoretical physicist 1918–1988Related quotes

Song lyrics, Lionheart (1978)

Jul 29 1982 https://www.youtube.com/watch?v=QHk9zoG6PXw

As quoted in "What is Don McLean's song 'American Pie' all about?" at The Straight Dope (15 May 1993) http://www.straightdope.com/columns/read/908/what-is-don-mcleans-song-american-pie-all-about
Context: As you can imagine, over the years I have been asked many times to discuss and explain my song "American Pie" I have never discussed the lyrics, but have admitted to the Holly reference in the opening stanzas. You will find many interpretations of my lyrics but none of them by me. … Sorry to leave you all on your own like this but long ago I realized that songwriters should make their statements and move on, maintaining a dignified silence.
The Ayodhya temple-mosque dispute: Focus on Muslim sources (1993)

The Law of Mind (1892)
Context: A difficulty which confronts the synechistic philosophy is this. In considering personality, that philosophy is forced to accept the doctrine of a personal God; but in considering communication, it cannot but admit that if there is a personal God, we must have a direct perception of that person and indeed be in personal communication with him. Now, if that be the case, the question arises how it is possible that the existence of this being should ever have been doubted by anybody. The only answer that I can at present make is that facts that stand before our face and eyes and stare us in the face are far from being, in all cases, the ones most easily discerned. That has been remarked since time immemorial.