What are some sentences about ungrateful people?

The sentence about ungrateful people is as follows:

1, don't forgive those who don't deserve forgiveness, useless people who don't deserve sympathy, meaningless people who don't deserve sympathy, people who don't deserve themselves and don't know how to be grateful. It's very troublesome not to pay.

2. Don't treat the mutual affection of others as your blessing; Don't take the courtesy of others as your luck; Don't take others' kindness to you for granted.

3, a person who does not know how to be grateful is a person without shame!

Behind every extinguished heart lamp, there is a sad story, and lighting that heart lamp sometimes only needs a warm word from Wei and a little help. If we don't forget to light a heart lamp around us, the world will be full of hope and light.

5. Being alive can be excellent or not, but you can't live without conscience. The nobleness of personality and conscience can make up for the failure of career. A person who doesn't know how to be grateful only knows how to take endlessly, is insatiable and never knows how to repay. No matter how much you give, he still thinks you owe him.