Answer:
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
It is more feared than fear itself, And no one can escape it. It takes no sides and does not judge, it does not know to hold a grudge. It is the most clearest result, Of how life beats you by default.
What moves without seeing and cries without eyes?
What English word retains the same pronunciation, even after you take away four of its five letters?
It is the great nemesis of the lactose intolerant.
What an fill a room but takes up no space?