Another month has passed and here is a new rationality quotes thread. The usual rules are:
Please post all quotes separately, so that they can be upvoted or downvoted separately. (If they are strongly related, reply to your own comments. If strongly ordered, then go ahead and post them together.)
Do not quote yourself.
Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson. If you'd like to revive an old quote from one of those sources, please do so here.
No more than 5 quotes per person per monthly thread, please.
The set of people who hold and argue for accurate beliefs about a given issue, and the set of people from whom it is possible to learn about a given issue, may often overlap but are not at all the same.
Another month has passed and here is a new rationality quotes thread. The usual rules are: