“Peace is in the grave.
The grave hides all things beautiful and good.
I am a God and cannot find it there,
Nor would I seek it; for, though dread revenge,
This is defeat, fierce king, not victory.”

Source: Memoirs of a Geisha

Act I.
Dantons Tod (Danton's Death) (1835)

Post-war years (1945–1955)
Source: The Second World War, Volume I : The Gathering Storm (1948) Moral of the Work, p. ix http://books.google.de/books?id=HzlT3t05OHoC&pg=PR9#v=onepage&q&f=false

Source: Perfect

Attributed in Lillet Walters (2000), Secrets of Superstar Speakers; attributed in English sources as a "Japanese proverb" as early as 1924
Misattributed, Not Chinese

Source: The Castle (1926)

1963, American University speech
Context: I have, therefore, chosen this time and this place to discuss a topic on which ignorance too often abounds and the truth is too rarely perceived — yet it is the most important topic on earth: world peace. What kind of peace do I mean? What kind of peace do we seek? Not a Pax Americana enforced on the world by American weapons of war. Not the peace of the grave or the security of the slave. I am talking about genuine peace, the kind of peace that makes life on earth worth living, the kind that enables men and nations to grow and to hope and to build a better life for their children — not merely peace for Americans but peace for all men and women — not merely peace in our time but peace for all time.

Source: The People Look Like Flowers at Last

Part I, line 9.
The Grave (1743)