"I knew Deng, and I had a wonderful, frank discussion with him, and he said, ‘ happened in Tiananmen Square is none of your business—it’s a domestic issue, and we do whatever we want,’ and I said, ‘You’re right. It is none of our business. But the consequences of What what you did in the world and to our relations are our business. And that’s what I’m here to talk about.’"
January 1, 1970
https://en.wikiquote.org/wiki/Deng_Xiaoping