"To stay young requires unceasing cultivation of the ability to unlearn old falsehoods."
-- Robert A. Heinlein (to be precise, his character Lazarus Long, but I don't think there's much difference)
But is it true? Do young folks have more of an ability to unlearn falsehoods than old folks?
(Last month's started a little late, I thought I'd bring it back to its original schedule.)
A monthly thread for posting any interesting rationality-related quotes you've seen recently on the Internet, or had stored in your quotesfile for ages.