Why does Bernard say that he agrees with John Savage in his letter to Mustapha Mond?

The time spent with John has opened Bernard's eyes to certain social problems and how they could be improved.

The Controiler skipped the next sentences and was just about to turn the page in search of something more interestingly concrete, when his eye was caught by a series of quite extraordinary phrases. ". though I must admit," he read, "that I agree with the Savage in *nding civilized infantility too easy or, as he puts it, not expensive enough; and I would like to take this opportunity of drawing your fordship’s attention to.