Agree to disagree, I think in order to succeed you need both. When people say that when you work hard you are only making your boss richer. Personally, I think there was a time when your boss needed to work hard AND smart in order to build a business. In short, you can't succeed by working hard or smart, you need both. If you have neither of it, you'll probably be exhausted and poor.
Bless you man. Sometimes, I feel we over hype the idea of working smart, but the truth is that one way or the other, you really need both of these attributes to be able to acquire something for yourself. You can work hard and not smart or work smart and not hard, so with that you end up being limited in a way, but combining the two can take you places. You think trying to pursue a project for years is not working hard and being smart to build your dream? So, I totally agree with you bro.