He says the arguments given by the 'militants' for the abolition of Britain's 161 grammar schools can be convincingly refuted.
He writes: 'Abolishing grammar schools would at best bring only one or two academically gifted pupils into the average classroom in other schools. It is a lot to ask of this one pupil to inspire a general increase in performance by his or her classmates.
'Abolition of grammar schools would therefore result in the opposite of what these activists claim. Increased uniformity and lower standards would be inevitable.
He concludes that the campaign to end grammar schools 'should be seen for what it is: the politics of dogma'.