You can't just drop the 82nd Airborne into Baghdad and it will all be over.

I think this is the biggest lesson a president or any of us who has responsibility to govern have to learn: There are always consequences to actions that you take. There are consequences to inaction.

Peace comes through dealing with people. Peace doesn't come at the end of a bayonet or the end of a gun.

In a general way, if one cannot attribute to the Jew the whole responsibility of the situation, economic, political, and social, by which Algeria is being strangled, it is no exaggeration to recognize him as morally guilty, for the great part of his rìle here, still more than elsewhere, has consisted in corrupting, degrading, and disintegrating.

We must prepare for everything.

We live in a world of absolute immediacy. It is an interconnected, combustible world, where technology and many other actions have given nonstate actors a reach, into countries and societies, for both good and evil, that we have never seen before. So it isn't a matter of just state versus state challenges or conflict. The bigger problem is nonstate actors.

Foreign policy is all about a universe of bad decisions, imperfect decisions; every situation is different. The dynamics, the atmospherics, the people, the pressures, the geopolitical realities shift.