"the quality of your life is determined by the quality of your conversations".
What is Twitter or Facebook (or social networking for that matter), but a service that provides us the ability to perpetuate an endless conversation with anyone who is willing to listen. So if you were to equate it to a real life event, it would be the same as one really large cocktail party, with a world audience. The conversation may be with friends, strangers or yourself.
Which brings us back to the "quality of your conversations" with yourself, the girl/boy next door, your college buddy, a famous scientist or a Nobel laureate. You can choose to fill with your life with conversations (an people) that enrich, nurture, support and empower... or not. Like most things in life, it's really up to you. As an educator, this responsibility to enrich and inspire is doubly important because YOU are shaping your life AND the life of your students. Before you send that tweet or have any conversation, do your words and actions truly represent "the change you want to see in the world"?
