Thirdly, Confucianism idoes not have exclusive. insights into "reality/truth."

NOTE: The original was somewhat vague. I offer a more precious wording.

I don't know much about religion because I'm not really a religious person, even though I admire the buildings, rituals and historical /cultureal aspects of many religions.

LOGIC: Some religions are "new" and do not have much history, so I hedged this sentence by adding the word "most."

Still, in history or recent news, I find out thatit seems that nearly every religion seems exclusive.

SUGGESTION: Hedge this sentence with the word "nearly" because there might be some religion somewhere is not exclusive. (Generally, your point is well-made.)

The first one is to learn from others, no matter who he or she isFirstly, it affirms we can learn from others, regardless of their age or gender.

The second one is toSecondly, Confucianism avows we should teach without distinction among students.

ItThis means everyone can learn from Confucianism, no matter who you are or your religionregardless of their religion, caste, or culture.

I really like to discuss ithis with you.

Thanks for sharing. In my opinion, the central question is how we define "religion" itself. Also, perhaps Confucianism has schools of thoughts: a few people might be overly zealous about this. (This tendency exists in every teaching: some are dogmatic and rigid, while others are open and broad-minded.)

I don't know much about religion because I'm not really a religious person, even though I admire the buildings, rituals and, [culture | historicaly and cultures | cultural history].

“Historical cultures” would make sense if you were referring to cultures that existed in the past (in history) but no longer exist today. In many contexts, I would translate 歷史文化 as “culture,” because culture usually includes history—there’s often no need to mention history separately, in English. But in some other contexts I might say “history and culture” or “cultural history.”

Still, in history or recent news, I find out that every religion seems exclusive.

ItThis means everyone can learn from Confucianism, no matter who you are or your religion.

I would really like to discuss it with you.

Thirdly, Confucianism is not exclusivopen to everyone.

Although it's not necessarily a mistake, it did take me a very long time to understand what you mean by "exclusive". If it is used as a standalone adjective like this, then it normally means "special". I think it's easier to read if you swap the logic.

Still, infrom history or recent news, I find out thatevents it seems like every religion seemis exclusivdes people.

you might prefer "current events" or "news stories"

The second one is to teach without making a distinction among your students.

perhaps "to treat everyone equally"?

It means everyone can learn from Confucianism, no matter who youthey are or youno matter what their religion.

I would really like to discuss it with you.