The investigation of mind is closely associated with the sector of philosophy, the a part of philosophy that deals with data and whose principal question is: "What will we have a tendency to realize?" philosophy is not such a lot preoccupied with the method of accumulating data, however with the validity of data and the way we are able to reach certainty regarding it. It includes the branch of philosophy that the people known as logic, that deals with language and thought. A philosopher once remarked tellingly that the idea of data may be a product of doubt. Things appear to talk in favor of Russell's read – most philosophers realize it's easier to see what we do not recognize instead of what we have a tendency to can recognize. Maybe the idea of data ought to then be known as "theory of cognitive content."