"The range of what we think and do is limited by what we fail to notice. And because we fail to notice that we fail to notice there is little we can do to change until we notice that failing to notice shapes our thoughts and deeds."
-- R.D. Laing, Knots
It could be of course that you are limited by other features of your psychology, and fail to notice because noticing such things doesn't lead to useful or sexy behavior. Such discriminating failure to notice things can't be mere random stupidity.
(Last month's started a little late, I thought I'd bring it back to its original schedule.)
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.