Dear Mother,—P—— L——, in his charming letter, tells me he would willingly exchange his philosophers for a gun. He is quite wrong. For one thing, Spinoza is a most valuable aid in the trenches; and then it is those who are still in a position to profit by culture and progress who must now carry on French thought. They have an overwhelmingly difficult task, calling for far more initiative than ours. We are free of all burden. I think our existence is like that of the early monks: hard, regular discipline and freedom from all external obligations.