Much of Philosophy is easy to grasp, after the initial panic that often curses education or thought. A Roman senator, named Boethius, born 480AD, did a lot for modern philosophy, back then.
He wrote about Philosophic Duality, the idea that things have opposite things, both familiar. But We would not grasp the one without the other for comparison. Seems straightforward. Clear thinking often feels that way, if you can find any.
He had other interesting things to say about Fate. We will save that for another day.