This excellent leadership article from John Maxwell shares some of his favorite quotes regarding the importance of communications

http://www.johnmaxwell.com/blog/good-words-on-communication

One subject where I have literally dozens of wonderful quotes is communication. It’s one of my passions, so I pay close attention to what great communicators have to say on the subject. Here are just a few of my favorite quotes on communication. I hope they inspire and encourage you if you’re trying to develop in that area.