What is the difference between hard work and smart work?

I believe that hardwork is done by physically and tends to handling the situation carefully.

Smart work can be done by mentally.

Whats coming to my mind is some students studies too much, some of them get good marks and some not. Some students get decent marks even though they study less. If one works hard, studies a lot, or puts too much energy on doing any work, I call it as hard work. If one achieves the same by putting less energy, I call it smart work. If even after hard work, one won't be able to achieve the things, then he should change his method of doing it, and that's smartness.

For example, when we were small, some friends used to by heart the things, but could not write well in exams, It's hard work. Understanding the concepts and writing in the exam is smart work.

There is no difference for both we have to work hard. But for any work there will be a small logical behind if we find that we can complete it smartly.

Hard work consumes more energy of mind, whereas smart work consumes less energy and gives results easily. Although both are integral in overall personality development.

Hardwork means doing work blindly without knowing what results comeout whereas smartwork basis is construct by making proper plan and innovative idea.

In my childhood, I use to do hard work because at that stage I don't know the difference between both and I use to mug up all the things. But now in this stage, I know how to utilize my time and learn things very quickly. So, now I do Smart work.

Let me define it with a simple example.

Hard work: An innovative idea is thought to Mind and implemented Manually (normally) done the task on time.

Smart work: Same as above but the idea is implemented technically and Which reduce the time and increase the comfortability to the man.

Hard work means when you doing any work with physically without using mental thoughts, without using right direction, right calculation and without looking the main requirement!

Smart Work means adding mentally thought process and taking less physically time and doing with the right direction, right calculation and looking the main requirement!

Hard work: It is something with which you work to complete an assignment with existent machinery/processes/systems in place.

Smart work: its quite same as hard work, but with added improvements/ innovations to the existing system.

Hard work, we do practical and smart work, we can do saves time. But both of necessary for the fresher so that we can move forward his life.