Here are some example's of a portrayed duality within the bible.
Book Of Ecclesiastes
3:1-To every thing there is a season, and a time to every purpose under the heaven.
3:2-A time to be born, and a time to die; a time to plant, and a time to pluck up that which is planted.
3:3-A time to kill, and a time to heal; a time to break down, and a time to build up.
3:4-A time to weep, and a time to laugh; a time to mourn, and a time to dance.
3:5-A time to cast away stones, and a time to gather stones together; a time to embrace, and a time to refrain from embracing.
3:6-A time to get, and a time to lose; a time to keep, and a time to cast away.
3:7-A time to tear, and a time to sew; a time to keep silence, and a time to speak.
3:8-A time to love, and a time to hate; a time of war, a time of peace.
For example, (3:8) Love and Hate are a duality, yet War and Peace are the duality of the duality of Love and Hate, this also can be seen within the other verses.
So, even in the past it has been known to some, of the duality of the world around them, yet how far can this duality system go? What can it apply to and what can it not apply to? Is it the active them within are existence?
For such be tru, so to shall the oppisite be true.
For thats the same method or "Logic" that is used within the "Book Of Ecclesiastes".
Yet the main question is, is it a fact that if one thing, function, charaistic, exists at one point of time, the oppisite will have to exist at one point of time.
A person unknowingly makes somthing that gives you a headach.
A person knowingly makes somthing that takes away your headach.
So can it be proven that every thing, every function, every chararistic that exists at some point of time will have a oppisite that will exist at some point of time, due to the fact that its oppisite has existed at some point of time.
And if such is true, then such would be a governing law of this existence, the same as any law of physics, would it not?