Concentration of effort and the habit of working with a definite chief aim are two of the essential factors in success, which are always found together. One leads to the other.

Ideas matter in New York. I am certain that more conversations in New York are about ideas than anywhere else. Not just vague theories, but ideas that New Yorkers have the will, and the clout, to do something about.

Over the last half century the television interview has given us some of TV's most heart-stopping and memorable moments. On the surface it is a simple format - two people sitting across from one another having a conversation. But underneath it is often a power struggle - a battle for the psychological advantage.

For those of you haven't read the book, it's being published tomorrow

New York means many different things to me. It certainly means cheesecake, more species of cheesecake than I ever knew existed: rum, orange, hazelnut, chocolate marble, Italian, Boston, and of course, New York.

Being upbeat is the key to life.

Having one child makes you a parent; having two you are a referee.