In a way, we can have a much easier discussion about the future of technology than we can about why a young man kills another man in a war.

The Chinese have a long history of slaughtering each other without bothering their neighbors.

There is a radical and unprecedented shift [in war] that is part of the general transformation of civilization. First, understand that the past 150 years of warfare are totally unprecedented in that we introduced a breathtakingly inefficient technology: guns. In the First World War, and this is not an exaggeration, it took 10,000 rounds of ammunition to kill one person. Any given shot had a one in 10,000 probability of ending someone's life.

The man who hates war more than he hates the Nazis is a wicked man.

Wars are times of intense technological transformation, because societies invest - sometimes with extensive borrowing - when and where matters of life and death are at stake.

What is American strategy first of all? So American strategy is to command the seas, right? The foundation of our power is sea control. Nobody can invade us, but we can invade them.

When I went to war, I did not go making geopolitical calculations. I went to war with a lust.