He never used the word 'brainwashed' but the sentence would fit in Tim's book. The main reason that 'brainwashed' seems remotely controversial is that we usually use that term to refer to indoctroniation by those who are not of our culture. The other divergent connotation is that the brain must be cleaned of what is already there. The first set of beliefs about how the world should be doesn't require cleaning the brain of pre-existing dogma before instilling itself.