Hi, what is your opinion on philosophy
I find philosophy very interesting. One common philosophical question I contemplate is if humans have free will
I think humans do have free will. 
I sure hope so, but it's such a complicated subject. Philosophers even question if we can truly know or prove anything.
Yes, that true. But it's sometimes interesting to see what they come up with
Oh yes. One of my favorite philosophers is Artistotle who lived in Ancient Greece. He had many brilliant ideas.