Oh, I agree with you that nature vs. nurture is a false dichotomy, but I was actually cheered to see this exchange. As terrible as it is by our epistemic standards, it's actually quite sophisticated by Star Trek standards. (So much of what gets called science fiction is actually technology fantasy.) I was similarly cheered to see the other exchange that I posted from that episode: he actually used the word hypothesis! Real philosophy of science! On Voyager! I love it! Best episode ever!
And you can see how this is still a rationality quote despite the conceptual confusion. Janeway is trying to break through Harren's contempt, but Harren resists her cliches and insists on (what he erroneously thinks is) accuracy.
So which of the two characters exemplifies rationalist virtues? It seems to me we've got one who's trying to use clichés to "break through" to the other, and one who's just stubbornly wrong.
A monthly thread for posting rationality-related quotes you've seen recently (or had stored in your quotesfile for ages).
ETA: It would seem that rationality quotes are no longer desired. After several days this thread stands voted into the negatives. Wolud whoever chose to to downvote this below 0 would care to express their disapproval of the regular quotes tradition more explicitly? Or perhaps they may like to browse around for some alternative posts that they could downvote instead of this one? Or, since we're in the business of quotation, they could "come on if they think they're hard enough!"