1. "The most important thing in communication is hearing what isn't said." - Peter Drucker

2. "The single biggest problem in communication is the illusion that it has taken place." - George Bernard Shaw

3."Think like a wise man but communicate in the language of the people." - William Butler Yeats

4. "We have two ears and one mouth so that we can listen twice as much as we speak." - Epictetus

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To read the original article: The Heart of Innovation: 24 Quotes on Good Communication