Can you have Schizophrenia without hearing voices?

YES! You do not have to have audio or visual hallucinations to have schizophrenia. You can have paranoia/ delusional thinking.

There is also catatonic schizophrenia where the person is in a catatonic state.

Yes as long as they have the majority of other symptoms of the disease.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.