Actually I think it would be correct and reasonable to change the words of the teachers. That is: smart work instead of hard work.
If we have the chance to work without draining ourselves physically and mentally while also receiving the most benefits possible then I think we should do that. Working hard will sometimes get you nowhere because there are people who can manipulate and cheat their way to the top.
I am not saying we also should cheat our way to success but if there is an easier way to the top then let us not waste time and grab that oppurtunity.