"There’ll be no winner, only losers from a new Cold War… no country wants a new Cold War," the ambassador said on Wednesday.
The ambassador added it could lead to "unbearable" consequences for the entire world. Furthermore, he said US President Joe Biden many times stressed his country did not seek further confrontation with China.
"The key is to honor the words with actions. We do hope that the US side will make reassurances about this strategy," the ambassador added, noting that Beijing has no intention of bending on issues that relate to its national interests.
"As ambassador, I know my responsibility. My job is to follow through on the important mutual understanding between President Xi and President Biden to make sure that China-US relations are stable, manageable and constructive. ... We want to build trust, respect and to reduce misunderstanding and miscalculation."
Qin pointed out that the two countries have differences but emphasized the latter do not justify misinformation, lies and malicious attacks. "Interfering in China's domestic affairs, damaging China's interests - as diplomats we have to stand up to say no, we have to protect our interests. This is a job of every diplomat," he said.
The ambassador went on to say that China's development and rejuvenation are underpinned by a very clear historical logic and strong internal driving force.
"China's rejuvenation is irreversible," he added.
Beijing Seeks 'Peaceful Reunification' With Taiwan
The Chinese government is doing everything it can to avoid a war with Taiwan and hopes to achieve a peaceful reunification with the island rather than enter in confrontation with its compatriots, the ambassador underscored during the speaking engagement.
“People on both banks of the Taiwan Straight, are our compatriots," Qin said. "The last thing we would like to do is to fight our compatriots, so we will do everything we can with the greatest sincerity to achieve a peaceful reunification."
The ambassador emphasized the necessity to respect the One-China principle, which is the basis for bilateral relations with the United States but has been undermined in recent years.
“We urge the United States to honor its commitments with actions and to fully implement the One-China policy,” Qin said.
Only through the adherence to that policy can a long and lasting peaceful reunification happen of mainland China and Taiwan, he added.
Qin's remarks regarding the One-China policy come as Beijing recently called on Washington to cancel House Speaker Nancy Pelosi's (D-CA) planned trip to Taiwan, reiterating that the lawmaker's arrival to the self-governing island "could lead to tensions" in the region.
Xinjiang Cannot Be Allowed to Become Another Islamic State
The Wednesday event also saw Qin weigh into the matter surrounding China's Xinjiang province, where the US has accused China of imprisoning Uyghur Muslims in so-called re-education camps.
"Xinjiang and Hong Kong are related issues, fundamentally, are not about democracy, human rights, ethnicity or religion, it is about anti-terrorism... it is about protecting lives, safeguarding China's national sovereignty, security and developing interests," Qin said during an Aspen Forum discussion.
"Xinjiang can never be allowed to be another Islamic State*."
The ambassador said Hong Kong has to be decolonized and governed by people loving China, loving Hong Kong so that after being returned to its motherland, the principle one China - two systems can work well.
In spite of the US' repeat accusations, China has denied the existence of "re-education camps," insisting that the country fully complies with the International Convention on the Elimination of All Forms of Racial Discrimination.
*Daesh (also known as ISIS/ISIL/IS) is a terrorist organisation outlawed in Russia and many other states