"Work hard and achieve everything" but I believe in one of the quotes by Sir Thomas Edison, "The three great essentials to achieve anything worthwhile are hard work, stick to activeness and smart work."
Success is something everyone strives for. Success is the ultimate thing we desire in any work as it gives us immense pleasure and contentment. But attaining this contentment is not a piece of cake.
It can be achieved only with perseverance and smart work inclusive of hard work.
It requires patience in abundance to develop perseverance in ourselves. When the world says, Give up, you can't do it , a persevering person, despite the failures, tries one more time.
A persevering person is a champion because champions keep playing until they get it right.
The world only trembles at the feet of the few craziest doers who ever lived.
But the world doesn't know the secrets of the success of these doers like Bill Gates, Mark Zuckerberg, etc. At the end, it is the perseverance and hard work in the folds of smart work that leads to success.