This saying of "民无信不立" was once cited by Johannes Rau, the former German president.
The saying of "知之为知之，不知为不知，是知也" was once cited by Yasuo Fukuda, former prime minister of Japan.
This saying of "四海之内皆兄弟也" was once cited by David Cameron, the then-British Prime Minister, in his speech at Peking University in Beijing on Nov 10, 2010.
This saying of "学而时习之，不亦乐乎" was once cited by Dmitry Anatolyevich Medvedev, deputy chairman of the Security Council of Russia.
This saying of "温故而知新" was once cited by Barack Obama, the former US President, in his speech at the Shanghai Science and Technology Museum on Nov 16, 2009.
Kong Fu Yin Ge, a seal workshop in Qufu, Jining, has been focused on seal carving art since its establishment in 1956, and makes seals to promote the local culture industry.
A worship ceremony for springs was held at the Baotu Spring Scenic Area on Sept 6, marking the opening of the 10th Jinan International Spring Water Festival.