It's important to speak up at work. Whether you've got a new idea to share, or a solution to a problem, or a concern that needs to be addressed, these things are worth talking about. But have you ever tried speaking your mind at work, only to get shut down? This happens to all of us, and there comes a time when you ask yourself, "Should I continue to fight for this? At what point do I drop it and move on?" Let's talk about when to let it go, even when you want to keep pushing.