Minsky's quote on folk-psychology and mechanism:

Here is a clear statement of why folk-psychology is problematic

. . what is a goal, and how can we have one? If you try to answer such questions in everyday words like “a goal is a thing that one wants to achieve,” you will find yourself in circles because, then, you must ask what wanting is–and then you find that you’re trying to describe this in terms of other words like motive, desire, purpose, aim, hope, aspire, yearn, and crave. More generally, you get caught in this trap whenever you try to describe a state of mind in terms of other psychology words because these never lead to talking about the underlying machinery.

- Marvin Minsky, 2006, The Emotion Machine, New York: Simon & Schuster, p. 187