Because everyone who wrote those books or articles included their personal opinions inside them, so ultimately, the subjectivity is mixed.

If one's manner of writing is distorted by wrongly misconceptions, then how could one convey the truth to future generations?

More than a thousand years ago, our ancestors involved themselves in a vain struggle for power. It was truly a pathetic and shameful thing to do.

However, to cooperate requires mutual trust. That is why, for me to believe in you, I would first need to come and verify whether you are "human" enough.

I for one have no doubt that Reimu is very much human, ze.

Yes! That is of course.

But I still have one last thing to confirm, as a matter of fact.