Jim Mattis

"Treachery has existed as long as there's been warfare, and there's always been a few people that you couldn't trust."

"By reading, you learn through others' experiences, generally, a better way to do business, especially in our line of work where the consequences of incompetence are so final for young men."

"For the mission's sake, for our country's sake, and the sake of the men who carried the Division's colors in past battles - carry out your mission and keep your honor clean."

"I don't lose any sleep at night over the potential for failure. I cannot even spell the word."

"In my line of work, the enemy gets a vote."

"It is not scientifically possible to accurately predict the outcome of an action. To suggest otherwise runs contrary to historical experience and the nature of war."

"No matter how bad any situation, cynicism has no positive impact. Watching the news, you might notice that cynicism and victimhood often seem to go hand-in-hand, but not for veterans."

"Since coming back from overseas, this is more of a foreign country than the places overseas. I don't understand it. It's like America has lost faith in rational thought."

"The Iranian regime, in my mind, is the single most enduring threat to stability and peace in the Middle East."