Lesson 27 - Speak with conviction.

If you say you're gonna do something, you better fucking do it. Follow through. Your word is one of the most valuable possessions in this life and it's also one of the most fragile. Protect it by backing up what you say with what you do.

Remember that trust is an easy thing to ruin, and a very difficult thing to repair. Also, no one wants to be a shit-talker, so don't make that your rep.