Cognition must be better understood if we are to improve the teaching of our children, or if we are to devise intelligent aids for scientists. Indeed, a better understanding of cognition will be needed before we can ever resolve world disputes and settle other major human problems.
Cognition is far too large a subject for any single discipline.
Increasingly people from different disciplines are joining together to study it. The investigation of any single topic within Cognitive Science typically requires ideas, insights, and results from more than one discipline. For example, Linguistics studies the universal syntactic and semantic properties of human language. Philosophy of Language also studies syntax and semantics, but from a different and more abstract perspective. The perspectives and methods are different, but each subject makes use of discoveries in the other.