Liberal politics meant the politics of common-sense.
The Spectator (17 February 1984), pp. 223-224, quoted in John Wilson, C.B.: A Life of Sir Henry Campbell-Bannerman (London: Constable, 1973), p. 230.
I am half-surprised to find that as I go on I get more and more confirmed in the old advanced Liberal principles, economic, social, & political, with which I entered Parliament 30 years ago.Henry Campbell-bannerman
We are keenly in sympathy with the representatives of Labour. We have too few of them in the House of Commons. ...The Liberal party, high and low, have discovered, if they ever forgot it, that the real road to success...lies in adhering to the old principles of the party.Henry Campbell-bannerman