Advertisement Peter Drucker Austrian American consultant, educator, and author (1909-2005) Quotes By Peter Drucker Love The most important thing in communication is hearing what isn't said. Peter Drucker Read more Advertisement Featured Image Credit: George Rose/Getty Images Advertisement recommended articles Iconic Lyrics From the Biggest One-Hit Wonders 14 Quotes To Start Your Morning on the Right Note The Best Jokes and Quotes From Steve Martin 17 Quotes Capricorns Will Love The 14 Best Catchphrases From ‘SNL’ 10 Mantras to Deepen Your Meditation Practice Advertisement