You have to study your field and you have to find out how other people do it, and you have to keep working and learning and practicing and ultimately, you would be able to do it. ↗
Another thing that's quite different in writing a book as a practicing newspaperman is that if you look at what you've written the next morning and you think you didn't get it quite right, you can fix it. ↗
I think that New York is the city of all cities. There is so much diversity there. I also like that when I go there, I can catch a play or musical and see some of the most talented people practicing their craft. ↗
I had changed from being a mathematician to a practicing scientist. I was increasingly embarassed that I could no longer follow some of the more modern branches of pure mathematics. ↗