The college that takes students with modest entering abilities and improves their abilities substantially contributes more than the school that takes very bright students and helps them develop only modestly.
Economists who have studied the relationship between education and economic growth confirm what common sense suggests: The number of college degrees is not nearly as important as how well students develop cognitive skills, such as critical thinking and problem-solving ability.
Colleges and universities, for all the benefits they bring, accomplish far less for their students than they should. Many students graduate without being able to write well enough to satisfy their employers... reason clearly or perform competently in analyzing complex, non-technical problems.
Doctoral training is devoted almost entirely to learning to do research, even though most Ph.Ds who enter academic life spend far more time teaching than they do conducting experiments or writing books.
The most obvious purpose of college education is to help students acquire information and knowledge by acquainting them with facts, theories, generalizations, principles, and the like. This purpose scarcely requires justification.