McCabe writes about Robertson the following:
"Mr. Robertson has been the most considerable force in English Rationalism since the death of Bradlaugh, to whom he was greatly attached. His works on comparative mythology, as bearing on the problem of Christ (whose historicity he denies —see his Christianity and Mythology, 1900, and Pagan Christs, 1903), are works of impressive learning; and his Short History of Christianity (1902) and Shorl History of Freethought (2 vols., 1915) are equally
valuable on the historical side. He drastically rejects religion in every shape, and has been for decades a powerful Rationalist and Ethical lecturer. He is at the same time a very able and critical economist, a weighty writer on certain fields of English literature, a good linguist, and an outstanding figure in the political world. No man has rendered higher service to British
Rationalism in the last four decades, and few, especially among self-educated men, have attained such reputable command of so many branches of culture." Quoted from McCabe's "Biographical Dictionary of Modern Rationalists."
Quoted from the author's "introductory."
"It does not seem likely, on the face of the case, that any new discussion of ethics will have much effect on conduct, private or collective. Socrates, who, faced by the general Greek opinion that virtue cannot be taught, is so often made by Plato to argue the contrary (and yet again to revert to the popular opinion), compassed in the end only a dramatic confirmation of the pessimistic view — a result which, in respect of his tactics, is hardly surprising. And
Aristotle, in his masterly though imperfectly wrought plan of making ethics and economics a preparation for politics, seems to have had no more influence on collective Athenian conduct than had the vain Utopia, the brilliant verbal sophistic, the harsh scheme of law or the ethical ballooning of Plato. Intent on ascertaining the Good, they apparently failed to grapple with the admittedly larger problem of Evil."