This era is in the hands of Hard workers or Smart workers?

In my opinion the effort that we exert for our work to be done is always hard, but the way can be smart. So I think there is no substitute for  hard work.

Basically it is the combination of both that gives us the desired results. But I would like to put forward a fact that hard work is essential for smart work. Working smart is to enhance the results of hard work. Hard work is like a chemical reaction and smart is the catalyst to improve the rate of reaction.

We are familiar to "smart phones". But was the smartphone invented first or did it all begin with conventional phones? Did wireless technology come first or the conventional one?

It is hard which results into development by smart work. If we stop hard work, we stop further development.

Hard work has an independent existence but smart is dependent on hard work. Best results come by the fusion of both in a balanced way.

I learned the hard way that working hard is less advantagous than working smart.  When you work smart, which entails being on top of the latest research, latest technology, and latest socio-economic, political trends then the work load that needs to be done in any venture will be lightened and simplified.  Keeping up with the pace that is required to turn out and turn in qualtity and timely work is not only the best way to work but the most strategic.