A Letter to James P. Cannon 
First Published: Leon Trotsky, In Defense of Marxism, New York 1942.
Checked against: Leon Trotsky, In Defence of Marxism, London 1966, p.120.
All footnotes stem from the latter edition.
January 9, 1940
Yesterday I sent the Russian text of my new article written in the form of a letter to Burnham. Not all comrades possibly are content with the fact that I give the predominant place in the discussion to the matter of dialectics. But I am sure it is now the only way to begin the theoretical education of the Party, especially of the youth and to inject a reversion to empiricism and eclectics.
1. This letter was written by Trotsky in English.