I've saved the best for last...

Also from Dr. Felix Adler 1880:

INDUSTRIAL TRAINING ADDS INTEREST TO LIFE

And so there can be nothing more salutary, nothing more wholesome, nothing more efficient for good, than a system of work education, which shall relieve industry of its deadness and its dullness, and give to the laborers the reasons why of those occupations with which they are daily concerned.

We lend, moreover, an entirely new import to the method of industrial education in the school. We are seeking to apply the principle which ought to be at the foundation of every modern scheme of education: namely, that, as experiment conjoined with observation is necessary to the discovery of truth, so object-creating must supplement object-teaching in that rediscovery of truths which it is the purpose of all education to facilitate. Therefore, work instruction is not a something outside the regular instruction; it is an organic part of the regular instruction. It becomes a means of teaching mathematics, for instance, more thoroughly, causing the pupils to work out mathematical truths with their very hands; it becomes the means of teaching natural history more effectively; it is worked into inseparable connection with the entire scheme of the scholar's mental and moral development. It becomes the means of making the hand a wise and cunning hand, by putting more brain into it. But, on the other hand, it also makes the brain a clear and vigorous and enlightened brain, by giving it the salutary corrective of the demonstrations of the hand. And so the system of work education, considered as an advance in education, generally has a value of its own. . .