If you experience some friction with an authority figure today, stand tall. Don’t let them intimidate you. They aren’t any smarter than you. They just know things that you don’t know, and there is a difference between the two situations. As long as you’re polite, you can insist on defending what you think. Your input is valuable even when it’s not exactly welcome, so don’t you dare apologize for voicing your dissent. Even if you’re wrong, at least they know that you care.