Alexander Hamilton (1755-1804), the first treasury secretary of the United States and the subject of the hit Broadway musical Hamilton, once said: "Those who stand for nothing fall for anything." Hamilton sure hit the nail on the head with that one. I understand that not everyone is naturally bold and assertive. Many of us -- particularly the ones who call ourselves introverts -- hate drawing any attention to ourselves. It isn't a matter of changing your personality, for as I've stressed in other posts, you should never change your personality just to appease other people. It's about standing up for yourself when people level criticisms at you that are unfair or blatantly false. It's about defending yourself against insults to your character. It's about not letting someone get away with trying to sully your reputation. But Hamilton's quote goes beyond merely standing up for oneself. Maybe there's a cause you're deeply passionate a...