“Do I, who've read Freud, know what the Future of an Illusion really is and know that religious belief is ineradicable as long as we remain a stupid, poorly-evolved mammalian species, think that some Canadian law is gonna solve this problem? Please. No, our problem is this: our pre-frontal lobes are too small, and our adrenalin glands are too big, and our thumb-finger opposition isn't all that it might be, and we're afraid of the dark, and we're afraid to die, and we believe in the truths of holy books that are so stupid and so fabricated that a child can - and all children do, as you can tell by their questions - actually see through them. And I think it should be (religion) treated with ridicule and hatred and contempt. And I claim that right.”

Source: Let It Snow: Three Holiday Romances

Source: Just a Geek: Unflinchingly honest tales of the search for life, love, and fulfillment beyond the Starship Enterprise

Filling Up the Hump (1993)

Homecoming saga, Earthborn (1995)

Source: Keeping the Moon

letter to Koichi Mano (3 February 1966); published in Perfectly Reasonable Deviations from the Beaten Track: The Letters of Richard P. Feynman (2005), p. 198, 201
also quoted by Freeman Dyson in "Wise Man" http://www.nybooks.com/articles/18350, The New York Review of Books (20 October 2005)
Context: The worthwhile problems are the ones you can really solve or help solve, the ones you can really contribute something to. … No problem is too small or too trivial if we can really do something about it. You say you are a nameless man. You are not to your wife and to your child. You will not long remain so to your immediate colleagues if you can answer their simple questions when they come into your office. You are not nameless to me. Do not remain nameless to yourself — it is too sad a way to be. Know your place in the world and evaluate yourself fairly, not in terms of the naïve ideals of your own youth, nor in terms of what you erroneously imagine your teacher's ideals are.

MSNBC, April 2007 http://www.youtube.com/watch?v=lxSe69YehvY
2000s, 2006-2009

2010s, Interview with David Marchese (2018)

Ibid., p. 18.
The Education of the Stoic