I do not desire to give myself any fresh political label. Though the formation of the Union of Democratic Control it has been possible for me to work in close co-operation with several of your leaders and this joint effort on the part of the Labour members and radicals is having I think a very beneficial effect. I do not desire to alienate myself from any of my former political associates but rather to endeavour to urge them along the same path which I myself am treading.
Letter to Herbert Bryan (19 May 1916).