Article II of The Unfinished Inheritance
Nothing in these articles is new. What would be new is a school that kept all twelve at once, and for every student.
From IX. The Examination
That a school has three duties: to transmit knowledge, to advance it through discovery, and to carry it into use. These duties belong together at every stage of education, and every student, in any school great or small, shall take part in all three, and may lead in them.
Tested in the Examination: