He has no choice in the matter.

He is the victim of a quasi-physical compulsion.

The pressure which is put upon him will inevitably be transmitted by him and through him to his pupils, and will inevitably be multiplied (the relations between teacher and pupil being what they are) in the course of transmission.
There is nothing that a healthy child hates so much as to have the use of his natural faculties and the play of his natural energies unduly restricted by parental or pedagogic control.

We may therefore take for granted that the child will find himself ill at ease in a school in which every vital activity is rigidly repressed, and in which he spends most of his time in sitting still and waiting for orders.

Nor will it add to his happiness to live habitually in an atmosphere of constraint, of austerity, of suspicion, of gloom.