“We always know more than we think we do. The problem is we don't always know what we know.”
“We think we know what we are doing. We have always thought so.”
“It's not always what we don't know that gets in our way; sometimes it's what we think we know that keeps us from learning.”
“We think we know.""Know? That's worse than an atom bomb, and always was.”
“We always think we know what we want: when in truth there is nothing we are less likely to know.”
“I think people can be trusted to know what makes them unhappy. Maybe we don't always know what we want exactly, but we can usually say what we don't with a fair amount of specificity.”