What is the most important communication advice?

We spend eighty percent of our waking time communicating. If we like it or not. Whether we are aware of it or not. Eighty percent. You better do it right. The facts: 16 percent of the time we read, something printed, text message, Facebook, twitter or a manual of the vacuum cleaner. Nine percent of the time we write: that text message again, an e-mail, a rare letter or grocery list. Thirty percent of the time we speak: dear words, harsh language, smart things, stupid nonsense. And then there is still: 45 percent left. Then what do we do. Listen, because that's what we're supposed to do: listen. 45 percent of our communication is all about listening. And that is only partially true because on average we don't hear 25 percent of what is said. A quarter, often essential information and valuable emotion completely passes us by. Therefore, the best communication advice around: listen. And listen carefully.