With this mindset people will fail in life. Attempting something and making a mistake in the process is not completely wrong. Only that it will cause big damage if we can't recover from the mistake. So, why do you need to make a mistake when you can avoid it. There are things you need not to make mistakes on because it will cost you a lot for you to recover from it. And there is every possibility you will still make the same mistake again because you fail to learn first. When it comes to the pursuit of success trade carefully, don't always listen to all motivational quotes it can misguide our actions.