Japanese ambassador Keiichi Hayashi told those present the stone was a "symbol of human suffering during World War II and the ongoing quest for peace".
And whether it is in civil nuclear cooperation, whether it is in humanitarian relief and disaster management, maritime security -- all these are issues which unite us in our quest for a world free from the threat of war, want and exploitation.
This 1955 novel, critics agree, distilled the experience of a generation, laying bare its hollow quest for meaning and purpose in the post-World War Two world of corporate business.