Ayn Rand

[Oberon]

“What is morality", she asked.
"Judgement to distinguish right and wrong, vision to see the truth, and courage to act upon it, dedication to that which is good, integrity to stand by the good at any price. ”

Well written, but what IS right and wrong? Considering that the answer to this varies from not only person to person but nation to nation, the definitive answer is something that I don't think can actually be given because it changes from era to era.