"With regard to Russell's book, it is published principally owing to a grant from the Royal Society, and so Russell only sends very few presentation copies." Jourdain had 3 review copies of Principia Mathematica at one time.

"The other day, in Russell's rooms, Russell told me of a Chinese philosopher who maintained that, before the world existed nothing existed, and before this even nothing did not exist. Can you tell me the name of this amusing philosopher, and are there any references to him in any of your books?"

"With regard to Russell's proof of the existence of God, Russell has forgotten the details of it but it was merely a Jeu d'espirit meant to show that Anselm's proof was not valid."