Rationality Quotes: July 2010

This is our monthly thread for collecting these little gems and pearls of wisdom, rationality-related quotes you’ve seen recently, or had stored in your quotesfile for ages, and which might be handy to link to in one of our discussions.

  • Please post all quotes separately, so that they can be voted up/​down 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  • Do not quote yourself.

  • Do not quote comments/​posts on LW/​OB.

  • No more than 5 quotes per person per monthly thread, please.