Neil Young certainly wasn’t joking last week when he said on stage on Philadelphia that he’ll never tour again with Crosby, Stills and Nash.

In New York on Tuesday to plug his latest book, Special Deluxe: A Memoir of Life & Cars, he said, “Playing with Stephen Stills and Graham Nash in that band was really great. I wish [David Crosby] the best with his life. There’s love there. There’s just nothing else there. [A reunion] will never happen. Never happen, no, not in a million years… You have to think about things before you do them. If you make a mistake, you have to fix it right away. [A reunion] will never happen. You don’t have to worry about it. It’s easy to say ‘no.'”

What he is referring to are the negative comments Crosby recently made in an interview about Young’s girlfriend, actress Daryl Hannah. Young goes onto say, “There’s nothing to apologize for. It was fixable, but it didn’t get fixed… I did everything I could to make sure it got fixed… We were together for a long time. We did some good work. Why should we get together and celebrate how great we were? What difference does it make? It’s not for the audience. It’s not for money, either. When you play music, you have to come from a certain place to do it and everything has to be clear and you don’t want to disturb that. I like to keep the love there, and if the love isn’t there, you don’t want to do it.”

CSNY last toured in 2006, and they last played together in October 2013 at Young’s annual Bridge School benefit.