In public life ... he had but one aim — his own aggrandisement. - Alfred Deakin

Sir Thomas was a man of business, stout, florid, choleric, curt and Cromwellian.

His colonial career though brilliant in parts was, on the whole, unsatisfactory, largely owing to British prejudice against an avowed 'Irish rebel' and partly owing to un attractive characteristics of temperament. My acquaintance with him was slight and short. He was Speaker of the Legislative Assembly when I entered it for a day in 1879 but not when I returned in 1880. His intellectual forehead, dignified demeanour and carefully polished utterances well fitted him for the post, though his voice at once weak and harsh, thin and squeaky, and his cold, calculating eye indicated the physical and emotional defects which helped to cripple his efforts and to defeat his soaring ambition. The literary graces and practised craftsmanship manifest in all his writings indicate the natural bent of his abilities and enable him to present in his autobiography a flattering full-length portrait of himself as he believed himself or desired others to believe him to be.

Though a Tasmanian born he appealed at all times to the narrowest Sydney and New South Wales provincialism by the pettiest and meanest acts and proposals. He was an anti- Federalist from the first, except upon terms which should ensure the absolute supremacy of his own colony as a stepping- stone to his own elevation.