Macbeth is a heroic soldier and an honorable man.
Martin Luther King was a man who wanted white and black have peace with each other without racism another black person can stay another white person can stay with no other way just peace and no violence
I would say it’s about using your life usefully. In other words, the summary is about “Making use of one’s life”.
Hope it helps!
The answer is hubris. Hubris is extreme pride or being too self confident. this is what caused the end of antigone.