Want to be successful? Be nice. It's that simple. Well, there's actually more to it. But being a nice person is the most important and the most practical advice that I can give anyone. There's 25 cognitive biases of the human brain; one of the strongest cognitive biases being 'liking and disliking bias'. Your ability to be likable is highly correlated with your success in life or in business. So if you're sitting down at your desk right now, watching the video, and saying to yourself that 'I could be a nicer person': you have some work to do. If you aren't nice, or if you are constantly taking jabs at people, chances are you will stay at the level you're currently at. And don't get me wrong. There will always be one or two complete assholes in high places. But they're much less the norm than people think.