"He was, I believe, the most principled great political leader of the century in the sense that to sustain and apply his principles in practice was the motive power of his life, the passion that absorbed him while others were engaged in the darker corners of the political workshop. … Aneurin Bevan, I believe, did more than any other man of his time to keep alive democratic socialism as the most adventurous, ambitious, intelligent, civilised and truly liberal of modern doctrines. This, the triumph of his whole life and personality, was the greatest of his achievements."