I liked this comment, but as anonym points out far below, the original blog post is really talking about "pre-scientific and scientific ways of investigating and understanding the world." - anonym. So 'just a few centuries ago' might not be very accurate in the context of the post. The author's fault, not yours; but just sayin'.
A monthly thread for posting rationality-related quotes you've seen recently (or had stored in your quotesfile for ages).