1. You don't know everything. If you're quiet for just 2 seconds maybe you'll learn something from someone who can fill in the missing pieces of the puzzle. Pieces that you may not even realize are missing because you think that you have all of the answers.
2. Abraham Lincoln said it best,
"Better to remain silent and be thought a fool than to speak out and remove all doubt."
If you listen more than you speak you will never be thought of as a fool, unless you do something incredibly stupid, but that's another story.
3. Sometimes we spend way too much time insisting that our will be done that we ignore that little voice inside of us which urges us in a positive direction. We give in to our flesh & disregard what we hear. But that voice is a blessing. A guidance system that is gifted to us through our Lord and savior. Not everyone has that gift, so those of us who do need to listen, and be grateful.