"Student loans have been helpful to many. But they offer neither incentive nor assistance to those students who, by reason of family or other obligations, are unable or unwilling to go deeper into debt. ... It is, moreover, only prudent economic and social policy for the public to share part of the costs of the long period of higher education for those whose development is essential to our national economic and social well-being. All of us share in the benefits - all should share in the costs."