Many times, we are thinking about it, but we don't know how to do it. I want to make progress, but I don't know which way to go. That's it, we can't really know, so we are uncertain and easy to regret.
All the gains are made by our own efforts. Not because I know, but because I can get it without going. Yes, as long as the road goes straight ahead. Otherwise, it is better to be ignorant.