The full quotation:
We must still run colleges. Here I must stress that we should still run physics and engineering colleges, but the period of schooling ought to be shortened, the education revolutionized, proletarian politics put in command, and the way of training technical personnel from the ranks of the workers advocated by the Shanghai Machine-Tool Factory adopted. Students must be selected from workers and peasants with practical experience, and after their study at school for several years they should return to practical production.