I think artificial intelligence will likely change the character of warfare, and I believe whoever masters it first will dominate on the battlefield for many, many, many years.

It is an honor of a lifetime to be appointed secretary of defense and to lead the greatest military in history.

Our adversaries must see diplomacy as their best option because war with the United States will force them to bear enormous costs.

Together, we will remain the most ready and capable military force in the world, which is what our nation expects and deserves.

Telling us to obey instinct is like telling us to obey 'people.' People say different things: so do instincts. Our instincts are at war... Each instinct, if you listen to it, will claim to be gratified at the expense of the rest.

Forget it, Louis, no Civil War picture ever made a nickel.

The battle of Varus is an enigma, not in a military but in a political point of view - not in its course, but in its consequences.

For those from my era, my age, that 2Pac vs. Biggie war will go on forever about who is the greatest. But I was more of a Biggie dude.