Question: Though he forcefully presses his case toward a conclusion many will find radical, the tone is calm and respectful and the writing style gentle and inviting.
The majority will find his conclusion radical and insane, despite the gently and inviting writing style.

Answer: it is not possible to tell

Question: Darn you! cried Julius.
Julius whispered to himself.

Answer: no

Question: For centuries, the odysseys of victorious commanders and commercial ventures of local merchants began and ended here.
This was the most popular sea route for centuries.

Answer:
it is not possible to tell