The arrival of top-up fees would end the principle of equal access to higher education, says the union.

BBC: Students want ban on 'top-up fees'

That's only possible because of the principle of desegregation in public education.

NPR: Is Segregation Undermining NYC Schools?

It was also proposed to devote appropriate attention to the principle of equity, basic education and training, and gender issues, involving young people and women in the process of building green economies and societies.

UNESCO: Education

Scottish Conservative leader Annabel Goldie asked if the first minister accepted the principle of a graduate contribution to help fund higher education.

BBC: First minister's questions

To help it avoid charges of suppressing the emergence of methods that may prove better than its favoured ones, the government should look to one particular principle, outlined in its education white paper of autumn 1997: that intervention in schools should be in inverse proportion to their success.

ECONOMIST: Journey up the learning curve

For many in society, profit and education are viewed as diabolical opposites, presumably as a matter of principle.

FORBES: Harnessing the Profit Motive to Transform Education

The Lib Dems, denouncing this heartless assault on the principle of free (ie, taxpayer-funded) higher education for all who can benefit from it, want the policy reversed.

ECONOMIST: The Scottish play

Liberal Democrat education spokesman Phil Willis said ministers had "abandoned the fundamental principle" of making academic and vocational qualifications of equal value.

BBC: NEWS | UK | Education | Teenagers 'must pass 3Rs tests'

Education in the Netherlands Antilles is based on the principle that each child, regardless of religious faith, race or social status, has to be given the opportunity to develop him or her self completely.

UNESCO: Introduction