A sentence describing an ungrateful person. Why are people ungrateful?

1, if a person doesn't spend most of his life, he can't even tell good from evil, and he doesn't even know who is to blame. It's really sad

For an ignorant, unreasonable and unreasonable person, everything you say to him is equivalent to FP, so you'd better save it!

Learning to look down on some things is the best protection for yourself. Especially in so many SB societies, it is really powerless to spit.

4. Animals don't understand people's words and don't know how to rely on them. Why talk more? People with prejudice, why bother to compete?

5, it is really a big forest, there are all kinds of birds, I don't know how to understand it! It's not worth living your age in vain, treating you like a human being and being angry with someone who is not a human being. Calm down and don't let the dirty things ruin my mood!

6. Some people are really unforgivable, because every time you are kind, you are regarded as a donkey's liver and lung. Let such an ignorant person die.

7. Some people are really not as good as dogs. Be kind to the dog, the dog knows how to rub your tail. It's a miracle that some people, I don't know, are still alive.