The Unknown Known

The Unknown Known is a 2013 documentary about the political career of former U.S. Secretary of Defense and congressman Donald Rumsfeld, directed by Academy Award winning documentarian and filmmaker Errol Morris.

Dialogue

 * Donald Rumsfeld: There are two sides to the coin. One is: "Belief in the inevitability of conflict can become one of its main causes." That is a truth. The other side of the coin, which is also true, is: "If you wish for peace, prepare for war."
 * Errol Morris: But if both were true, well, you can use that to justify anything.
 * Donald Rumsfeld: There is a similar thing in Rumsfeld's Rules where I say: "All generalizations are false, including this one." There it is!