Flashback some ten years back, when I in primary school, my favorite teacher asked the class to form a sentence with the phrase '妒忌'. Back then I earnestly raised my hand and said, "小明对他们的羡慕慢慢变成了妒忌 。"

She said it was a very good one because it clearly shows my understanding of the difference between '羡慕' & '妒忌', and the fact that they are distinctly different.

Back then I was but a child, yet already seem so intelligent for my age to many.

Fast forward ten years,  I'm no longer considered a child,  yet that subtle difference between the two grows much small,  and my ability to tell them apart grew much larger.

Did the world change? Or did I change, seemingly not for the better?