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.
Please post all quotes separately (so that they can be voted up/down separately) unless they are strongly related/ordered.
Do not quote yourself.
Do not quote comments/posts on LW/OB - if we do this, there should be a separate thread for it.
No more than 5 quotes per person per monthly thread, please.
The study of mathematics cannot be replaced by any other activity that will train and develop man’s purely logical faculties to the same level of rationality.
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.