Since that last one was pretty negative/intense, I’ll immediately follow with this one.
The best advice I’ve ever been given/heard:
Never start a fight, but always finish it.
Captain Sheridan’s words are words to live by. Don’t go looking for trouble but if trouble comes looking for you, make sure you can handle it and stop it. It’s okay to be assertive and to take risks and to have opinions and express them. But, one should never work towards starting a fight or confrontation with another person. It’s always better to let the fight come to you, on your terms, then you can counter it and deal with it in your way.
This, plus the idea of being prepared for as many things as possible, means that adversarial elements and issues in life are manageable. This is actually a lot easier now with the proliferation of the Internet. Gathering information and knowledge before something confrontational or challenging is far easier.