Dear Mrs. Malcolm,
I want to say how sorry I am about Chris.
During the last year I worked with him continually and I am sure I could not have found anywhere another companion so brilliant and yet so charming and unconceited.
I regarded my interest in my work, and in such things as astronomy (to which he introduced me) as something to be shared with him and I think he felt a little the same about me.
Although that interest is partly gone, I know I must put as much energy if not as much interest into my work as if he were alive, because that is what he would like me to do.
I feel sure that you could not possibly have had a greater loss.
yours sincerely,
Alan Turing
