We find that the child who does not yet have language at his command, the child under two and a half, will be able to cooperate with our education if we go easy on the "blocking" techniques, the outright prohibitions, the "no's" and go heavy on "substitution" techniques, that is, the redirection or certain impulses and the offering of substitute satisfactions.

The Magic Years: Understanding and Handling the Problems of Early Childhood (ed. Simon and Schuster, 2015) - ISBN: 9781501122828