I cannot become another Sir Robert Peel in my Party.

Remark to David Lloyd George (October 1910) rejecting his proposals for a coalition government, quoted in Blanche E. C. Dugdale, Arthur James Balfour, First Earl of Balfour, K.G., O.M., F.R.S., Etc. 1906–1930 (London: Hutchinson & Co. Ltd, 1936), p. 54