Arthur Hughes, Dictionary of National Biography… (1912)
“ Herbert, a man of singular charm, always scrupulously anxious to distinguish the system he attacked from the men who upheld or lived under it, was penetrated by the belief that the law of equal freedom is the supreme moral law. A keen sportsman and a fine rider in his youth, he gave up sport in later life on account of his objection to taking life, and for the same reason became a vegetarian. ”
