1. He is impervious to criticism and rational argument.

2. 21 The examiners put a premium on rational argument.

3. 14 He is impervious to criticism and rational argument.

4. The banning of the ordeal symbolized a triumph for rational argument over the old magical formulas.

5. 22 Hume rational basis for critique of traditional religions, primarily reflected in the design of deism that with the traditional theory of rational argument on the theology of the revealed religions.