by the time you are 70, you should have gained some wisdom to share with someone else. That you’ve had some experiences that you carry within you, within your body, within your presence. Wisdom to share with other people. And that is what the book is doing

I didn't take any of that [criticism] personally…I think if people want to think that, they can think that, but people who know me and know me well, know that I've always been very independent. I think for myself, and I'm capable of doing it and enjoy doing that