A monthly thread for posting rationality-related quotes you've seen recently (or had stored in your quotesfile for ages).
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Do not quote yourself.
Do not quote comments/posts on LW/OB.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.
Although nature commences with reason and ends in experience, it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.
A monthly thread for posting rationality-related quotes you've seen recently (or had stored in your quotesfile for ages).