As we think of power in the 21st century, we want to get away from the idea that power’s always zero sum — my gain is your loss and vice versa. Power can also be positive sum, where your gain can be my gain.

Terrorism is like jujitsu: The small players win if they make the large player use his strength against himself.

His [Osama bin Laden]excessive use of terror, including numerous attacks that indiscriminately killed many women and children, and of course many Muslims, has hurt the attractiveness of his message.

As we think of power in the 21st century, we want to get away from the idea that power’s always zero sum — my gain is your loss and vice versa. Power can also be positive sum, where your gain can be my gain.

Power is the ability to affect others to get the outcomes you want, and that can be done by coercion, payment or attraction.

In the information age, it's not just whose army wins, but whose story wins.

Money and donations are an important part of our political system. They are hard power.