John Sutherland Black and Luigi Villari, 1911 Encyclopædia Britannica, Volume 17… (1911)
“ In this connexion Thomas Carlyle wrote to The Times: “I have had the honour to know Mr Mazzini for a series of years, and, whatever I may think of his practical insight and skill in worldly affairs, I can with great freedom testify that he, if I have ever seen one such, is a man of genius and virtue, one of those rare men, numerable unfortunately but as units in this world, who are worthy to be called martyr souls; who in silence, piously in their daily life, practise what is meant by that.” ”
