That requires listening as well as speaking. It means sticking to principles, but also attempting to understand the other side, however irrational or intransigent it may sometimes appear.
对话不仅要求发言，也要求倾听。这意味着坚持原则，但是同时也努力理解另一方，而无论那一方有时看起来有多么的没有理性和不妥协。