Why is it believed that what pictures you can make in your head, and what is true or necessarily true, are terribly well connected? If there is not a substantial connection between the (necessarily) true and your conception of the (necessarily) true, then Hume's argument goes up in smoke.
-- Aretae
Yes, a good point. There's the famous argument that naturalism is self-defeating because e.g., "why should I trust a monkey brain?" But in order to get to where you are today, each organism in your ancestry must have had enough harmony with nature's laws so as to harness them for its sustenance and reproduction.
So there has to be some connection between the two.
A monthly thread for posting rationality-related quotes you've seen recently (or had stored in your quotesfile for ages).