John St. Loe Strachey, The Adventure of Living : a Subjective Autobiography
“ It is this mental profundity which is the main thing to remember about the Duke of Devonshire. To speak of him as if he were merely a man of character and firmness is to mistake him altogether. The Duke impressed all who saw him at close quarters. It was only the people who did not know him who said that he owed his rise to high office solely to his birth and wealth. I remember Mr. Chamberlain once saying to me, "It's all nonsense to talk about Hartington being dull and stupid. He is a very clever man." ”
