His logic was severe and faultless.

He did not resort to fallacy, and could detect it in his opponent, and expose it with merciless directness.

He had an abounding sense of humor, and always employed it in illustration of his argument,--never for the mere sake of provoking merriment.

In this respect he had the wonderful aptness of Franklin.

He often taught a great truth with the felicitous brevity of an AEsop fable.