Greek heroes were extraordinary individuals who possessed great skills and strength or they simply stood out of the rest of the people by their ingenuity, intelligence and charisma. There had been many stories foretold by Greeks about each of these exceptional characters.
It is true that some of these heroes had an advantage of being born with divine qualities. They are called demi-gods or in modern term semi-gods, because one of their parents were a god or a goddess. However, mortal heroes were no less respected than semi-gods. Some of the mortals even exceeded semi-gods in terms of bravery and reputation. Regardless of their origin, these heroes accomplished many great tasks and even tasks thought being impossible to accomplish. Because of the deeds, they had done and helping humanity to progress, they were favoured by the gods. If enough favours were gained or devotion showed, the gods would even help the heroes by either giving them wisdom or intervening themselves with their powers.