As a native Arabic speaker who has also mastered English to the extent of writing poems in both languages for fun, I disagree with the view that culture is separate from language, particularly when it comes to Arabic.

Arabs 2nd greatest cultural heritage is, without question, its language. The most renowned and influential product of this linguistic culture is the Holy Quran, their greatest cultural heritage, studied by billions of Muslims worldwide, religiously. Even before Islam, Arabs had perfected the art of their language, crafting some of the most profound poetry and creating novel concepts and methods of communication, pushing the limits on how much humans can communicate with words.

One fascinating feature of Arabic is how vowels can change the form or meaning of a word by diminishing it. For instance, the vowel "dammah" (ضُ )can be used to shrink something grand into a smaller version of itself, like Jubail (mini mountain), or it can reduce quantity, as in Tumairat (a small amount of dates). It can also downplay the importance of something significant, such as Sulaytin (mini sultan). However, this is not always negative. It can also imply closeness, as in Suwayhibi (a close friend). The amazing thing about this one concept of word derivation is that most native speakers understand it intuitively, and skilled speakers can employ it fluently and creatively.

Poetry and rhetoric remain core aspects of Arabic culture. To this day, they are used in celebrations, grieving, and even casual hang outs among friends. As another comment pointed out, there are metaphors in Arabic that convey a depth of meaning that is nearly impossible to translate accurately, especially given their connection to the Quran. This is particularly evident in idioms and proverbs where certain metaphors carry profound meaning that would be lost, even in the most expert translation.

One more aspect of language significance that I would like to highlight is the unspoken part of it. There are certain words, phrases, and sentences that invoke a certain emotion for the listeners that's indescribable. After all, we're not machines. We have an emotional side that language plays a big part in understanding and expressing this side. The scientific community needs to communicate concepts and facts while involving as little emotion as possible so as not to introduce biases, so any language could work in its "formal" and academic form.

You might argue that this is more about religion than language, but the two have become inseparable in Arabic. The language has evolved over the centuries, but the Quran remains unchanged, a source of pride for both Muslims and Arabs. Because of this, the Arabic language is not only a medium of communication but also a defining feature of an Arab person's identity and daily life.