One thing people should know is we should always be ready and open to learning new things. We can't make money if we're stuck to the same thing while things around us are changing.
Take a business for example. If you have a business and you don't keep yourself updated about the happening in your industry, your business will most likely not grow. You have to be ready to research and learn new things. Even as a person, we should always try to always develop ourselves. We can't be better people if we don't develop ourselves and the only way we can do that is to learn stuff. Don't have a closed mind.