"We are two separate political entities. Of course, we must also explain it to other international friends. That is, Taiwan and China are two countries that are in a bit of trouble. In our respective constitutions, they also put the other's territorial sovereignty in their own constitutions. This is the biggest trouble for both of us. However, in fact, if we look at the two countries at present, whether they are sovereignty, culture, or the entire political system of the country, they are basically two completely different countries."
January 1, 1970
https://en.wikiquote.org/wiki/Lin_Ching-yi