“Perpetual peace is a dream,” he said, “as much as we may yearn for it—but war! War is an integral part of God’s ordering of the universe, without which the world would be swamped in selfishness and materialism. War is the very vessel of honor, and who of us could endure a world without the divine folly of honor? That faith is especially true and adorable which leads a soldier to throw away his life in obedience to a blindly accepted duty, in a cause he little understands, during a campaign of which he has little notion, under tactics of which he does not see the use. On the field of battle, where a man lives or dies by the caprice of a bullet or the verdict of a bayonet, life is at its best and healthiest.”

Homilies on Timothy http://www.ccel.org/ccel/schaff/npnf113/Page_429.html, Homily VII

Chapter: Helvidius Number IV http://oll.libertyfund.org/?option=com_staticxt&staticfile=show.php%3Ftitle=1910&chapter=112553&layout=html&Itemid=27 in: The Pacificus-Helvidius Debates of 1793-1794: Toward the Completion of the American Founding, edited with and Introduction by Morton J. Frisch (Indianapolis: Liberty Fund, 2007)
Context: In no part of the constitution is more wisdom to be found than in the clause which confides the question of war or peace to the legislature, and not to the executive department. Beside the objection to such a mixture of heterogeneous powers: the trust and the temptation would be too great for any one man: not such as nature may offer as the prodigy of many centuries, but such as may be expected in the ordinary successions of magistracy. War is in fact the true nurse of executive aggrandizement. In war a physical force is to be created, and it is the executive will which is to direct it. In war the public treasures are to be unlocked, and it is the executive hand which is to dispense them. In war the honors and emoluments of office are to be multiplied; and it is the executive patronage under which they are to be enjoyed. It is in war, finally, that laurels are to be gathered, and it is the executive brow they are to encircle. The strongest passions, and most dangerous weaknesses of the human breast; ambition, avarice, vanity, the honorable or venial love of fame, are all in conspiracy against the desire and duty of peace.

Songs of the Soul (1971)

Napoleon : In His Own Words (1916)

In a letter to Pierre Dupuy, Sept. / Oct. 1627; as quoted by Simon Schrama, in Rembrandt's eyes, Alfred A. Knopf - Borzoi Books, New York 1999, p. 248
1625 - 1640

As quoted in "Is World Peace on the Horizon?", in The Watchtower (15 April 1991)

Letter to the Kaiser (6 March 1912), quoted in Konrad H. Jarauschl, ‘The Illusion of Limited War: Chancellor Bethmann Hollweg's Calculated Risk, July 1914’, Central European History, Vol. 2, No. 1 (Mar., 1969), pp. 59–60