Bertrand_Russell_transparent_bgTo Susan Sturgis de Sastre
Oxford, England. October 1, 1913

I have been working very steadily; my book, however, hasn’t got all the benefit of it, as I have been writing other stuff—some half-poetical dialogues that I have long had in mind and one of which was actually written and published long ago in a review. When this spurt of inspiration is over, however, I shall go back to the solid work, and I count on being stimulated especially by talking with Bertie Russell in Cambridge. I saw him at his brother’s, but we didn’t have more than one or two opportunities for quiet discussion. He is a logician and mathematician, strong where I am weakest, so that it is not always easy for us to understand each other on these abstruse points. However, we feel sympathy even in our diversity, and that is why I am anxious to put my view on some subjects (not on all) before him and to learn his more accurately. However, in the end every philosopher has to walk alone.

From The Letters of George Santayana:  Book Two, 1910-1920.  Cambridge, MA: The MIT Press, 2001.
Location of manuscript: Alderman Library, University of Virginia at Charlottesville