Children need to be taught that there are few instances in which serious discussions can be simplified to a matter of right or wrong, and fewer still in which one person’s rightness should be taken as proof of another’s wrongness. In the lexicon of Critical Thinking, this is called the fallacy of ‘affirming a disjunct’; that is to say, ‘either you are right or I am right, which means that if you are wrong I must be right’. One cannot think critically in such reductionist terms.

