Is blackening true in reality?

In the real world, some people will do whatever it takes to get it. Because of selfishness, they won't miss any opportunities and benefits. The once ideal will gradually be replaced by the cruelty of reality. Only interests can keep pushing forward. Smart people will not let go of any interests, getting darker and darker, and be a person with the highest interests. The initial heart has been forgotten, and it will only pursue the maximization of interests.

Some people are kind at first, but they are always cheated and hurt. No matter in the field of love or friendship, I hope others can be kind to him, but the efforts may not be rewarded. It's hard to realize this. A blackened heart, what it says is against its will, and what it does is not what it really wants to accomplish. This kind of pain is also annoying.

For example, a weakened version of "blackening". When I went to the steamed bun shop to buy steamed buns, everyone didn't line up, but it was all crowded. At first, you are naive, and you always don't squeeze, waiting for the people next to you to buy first, so you are often the last to buy, or when it's your turn, the buns are sold out. But I wasted my time. This will also make you depressed.

Then, when I buy steamed buns for the second time, I will be crowded with everyone, so I can't wait in line. Walking out of the steamed stuffed bun shop, you see a mother scolding a boy: "Why don't you squeeze?" You haven't bought steamed bread for a long time! " "You looked at the lost boy, took a bite of the steamed stuffed bun and smiled faintly:" This young man is quite naive. "