When I was the director of Central Intelligence in the early '90s, I tried to get the Air Force to partner with us in building drones. And they didn't want to, because they had no pilots.

Well, I've ruffled a few feathers at all the institutions I've led. But I think that's part of leadership.

I've seen, all too often in my career, people coming in to lead agencies and organizations and trying to impose change from the top down. Never works. You never have enough time.

I had no difficulty as Secretary of Defense moving from the Bush administration to the Obama administration.

From the moment this war began, there was, for this state, only one policy possible, neutrality.

When resources are degraded, we start competing for them, whether it is at the local level in Kenya, where we had tribal clashes over land and water, or at the global level, where we are fighting over water, oil, and minerals. So one way to promote peace is to promote sustainable management and equitable distribution of resources.

Some men know that a light touch of the tongue, running from a woman's toes to her ears, lingering in the softest way possible in various places in between, given often enough and sincerely enough, would add immeasurably to world peace.

Those men who, in war, seek to preserve their lives at any rate commonly die with shame and ignominy, while those who look upon death as common to all, and unavoidable, and are only solicitous to die with honour, oftener arrive at old age and, while they live, live happier.