Now intelligence seemed quantifiable. You could measure someone's actual or potential height, and now, it seemed, you could also measure someone's actual or potential intelligence. We had one dimension of mental ability along which we could array everyone... The whole concept has to be challenged; in fact, it has to be replaced.

An intelligence is the biological and psychological potential to analyze information in specific ways, in order to solve problems or to create products that are valued in a culture.

It's not how smart you are that matters, what really counts is how you are smart.

Knowledge is not the same as morality, but we need to understand if we are to avoid past mistakes and move in productive directions. An important part of that understanding is knowing who we are and what we can do... Ultimately, we must synthesize our understandings for ourselves.

If one develops good habits and routines, it is possible to be a responsible educator most of the time; and to marshal the special energies and reflection for those times, when the correct course of action is not clear, or when one is weighing one wrong against another wrong.

The biggest mistake of past centuries in teaching has been to treat all students as if they were variants of the same individual and thus to feel justified in teaching them all the same subjects the same way.

No academic ever expects to be taken seriously by more than three other people, because really, we write for three people in our field.