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Taking Things Seriously.
The intellect is with most people an awkward, obscure and creaking machine, which is difficult to set in motion: they call it "taking a thing seriously" when they work with this machine and want to think well—oh, how burdensome must good thinking be to them! That delightful animal, man, seems to lose his good-humour whenever he thinks well; he becomes "serious"! And "where there is laughing and gaiety, thinking cannot be worth anything: "—so speaks the prejudice of this serious animal against all "Joyful Science."—Well, then! Let us show that it is prejudice!

- Friedrich Nietzsche, The Joyful Science

أخذُ الأُمورِ بجديّة:
بالنسبة لمعظم الناس، فإنّ العقل هو آلةٌ خرقاء وغريبةٌ وذاتُ صريرٍ عالٍ ويَصعُبُ تشغيلُها: فَهُم يَتحدثون عن "أخذِ الأُمورِ بجديّة" عندما يعمَلون بهذه الآلة ويرغبون بالتفكيرِ جيدًا—اه، كم هو مُضنٍ التفكيرُ الجيد بالنسبة لهم! إذ يبدو أنّ هذا الحيوانَ المُبهِج، الإنسان، يَفقِد روحَ الدعابة كُلّما فكّر جيدًا؛ إذ يَصيرُ "جديًا"! و "حيثُما يوجَد الضحك والبهجة، فإنّ التفكير لن يكون ذا قيمةٍ بتاتًا: "—هكذا يتكلّم هذا الحيوانِ الجدّي في تَعَصُّبِه ضِدَّ كُلّ "العلومِ المرحة."—حسنًا إذن! لنُثبِت أنّه تعَصُّب!

- العِلم المرح، فريدريك نيتشه

Ideal and material:
You envisage a noble ideal, but are you such a noble stone that such a divine image could be fashioned out of you? And anyway — isn't all your work a barbarous sculpting? A blasphemy against your ideal?

- Friedrich Nietzsche, The Joyful Science

The goddesses of fate by Stanislav Plutenko, 1961.

- Breaking Bad😂

Protein metabolism in animals (including humans) creates ammonia, which is very toxic. That's why every animal has developed its own way to get rid of it:

• Humans get rid of ammonia by turning it into urea and excreting it in urine.

• Fish get rid of ammonia by excreting it directly into the water through their gills (just like we get rid of CO2 through our lungs). Which is one reason why you should change the water in the fish tank every now and then. (Bcuz ammonia will accumulate and hurt their skin and fins and eventually cause a mass murder).

• Birds and reptiles turn ammonia into uric acid and excrete it with the feces (not the urine, bcuz uric acid loves to form painful urinary stones).

Plants, on the other hand, LOVE ammonia. They love ammonia so much that they sometimes let ammonia-producing bacteria form colonies on their roots: beans, peas, and soy plants live in symbiosis with Rhizobia bactera. The bacteria gives the plant ammonia, and the plant gives the bacteria a place to sleep (and some organic acids).
Also, that's why we make so much ammonia in our factories; because we use it as a fertilizer.

Short answer:
Bcuz it's both very toxic and very essential for life, just like the way u felt towards ur ex (whom you now call, a bitch) right before u broke up.

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There's this thing called aquaponic farming in which they grow fish and plants together: The fish produce ammonia in the tank, and the water from the fish tank is used to grow plants. The plants benefit from the ammonia for their own growth, and at the same time clear the water from ammonia and send it back to the fish tank to be reused.

بالمناسبة، بالإنسان، الكبد هو اللي يحول الأمونيا إلى يوريا. ولهذا لما الشخص ينصاب بفشل بالكبد أو تشمع Cirrhosis فمن الممكن تزيد نسبة الأمونيا وتسبّب Hepatic encephalopathy

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+ there's another example of how plants obtain ammonia to meet their needs of nitrogen, the carnivorous plants, my favorite :")💗
هذي النباتات تنمو بمناطق تفتقر تربتها لعنصر النيتروجين، لذلك تطوروا بشكل يمكّنهم من اخذ احتياجهم منه من خلال التحورات الي صارت لأوراقهم او جذورهم (حسب نوع النبات اللاحم) وصاروا يتغذون على الحشرات او الحيوانات الصغيرة لهذا السبب.

+ الامونيا NH4 والنترات NO3 هي من اكثر المركبات غنية بالنيتروجين، والي يعتبر عنصر مهم جدًا جدًا جدًا لحياة النباتات لأنه يدخل بتصنيع الاحماض الامينية والاحماض النووية والمركبات المهمة الثانية منها هرمونات النمو.