Xi made the remark in a meeting with Papua New Guinean Prime Minister Peter O'Neill at the Diaoyutai State Guesthouse in Beijing.
Xi also underscored the importance of more targeted efforts to help the poor.
Xi said as a university dedicated to advanced science and high-tech research, USTC has made great efforts in recent years in pushing forward scientific innovation. He told students they should have ideals, pursuits, responsibilities, achievements and good qualities and become well cultured.
Xi said he attaches great importance to China-Cambodia relations, voicing his hope that both sides will make concerted efforts to promote their traditional friendship, deepen mutually beneficial cooperation, forge a community of shared future of strategic significance, and achieve common development and prosperity.
Wuxi has become a popular investment destination for its plentiful supply of valuable resources in recent years.
Xi made the remarks during an inspection tour of the city of Zhangjiakou in northern China's Hebei Province.
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Xi said China is willing to offer assistance to the Philippines on poverty reduction, and continue support for the Philippine government's effort to safeguard national security.
Wusu is a leading producer of corn and cotton in Xinjiang, and as a major stop of the China Railway Express, the city lies along the new Eurasian Continental Bridge. Farmers like Ma in Wusu are benefiting from such convenience and the new uses of their crops.
Xi also asked officials to improve public security and to uproot the sources of conflict among members of the public. In addition, he said the government should take good care of national security professionals.
Xi's instruction was read at the meeting by Ding Xuexiang, a member of the Political Bureau of the CPC Central Committee, member of the Secretariat of the CPC Central Committee, and secretary of the working committee for central and state organs.