Critical thinking and argumentation are closely allied. And yet each field has its own derivation and antecedents, and the differences between these are fundamental not only to debates today about their centrality in higher education, but to the entire history of the relationship (in Europe at least) between thought and language as well. On the one hand, critical thinking is most closely allied to philosophy; on the other, argumentation is allied with rhetoric. The debate about the relationship between philosophy and rhetoric goes back to Plato and Aristotle. It concerns ideas, ideals, concepts, and abstract thought and logic in relation to philosophy and the expression of these categories in verbal and other forms of language. Both critica...