Years ago I read his book "How to Win Friends and Influence People," but somehow it didn't rub off. But it was a good book with all kinds of encouragement to care authentically about others, remember other people's names, look for things in others which you can honestly appreciate, listen carefully and put yourself in the other person's shoes, stuff like that. He seems like a fine gentleman and a skillful writer. fwiw
Rain soddens what is kept wrapped up,
But never soddens what is open;
Uncover, then, what is concealed,
Lest it be soddened by the rain.