How to exchange sincerity for sincerity?

The classic sentence that sincerity can't be exchanged for sincerity is as follows:

1. After all, the world can't bring people's hearts for the sake of people's hearts, because some people are not people, and some people have no hearts.

People may not change their minds, but you still have to live sincerely.

I got up by myself! I will love myself! I must deny my parents! Nobody helped! Don't blame me for not helping others! Heart for heart!

4, heart for heart, and finally good. The biggest fear is that you can't change your mind. Fortunately, you woke up in time and thought about how to be good to each other. This family can be good.

5. There is nothing I can do. I hold a grudge too much. I will treat you as you treat me. This is a society where people's hearts change.

I don't understand that it is impossible for this society to realize the possibility of changing people's hearts.

7. Since you don't understand the hard work of taking care of my baby, I won't understand your hard work of making money. People's hearts change for each other, you give me a look. I can't lick a dog's face. After all, it's a heart-to-heart exchange. It's very happy to see some of my jobs get other people's jobs, and it's easy to get stuck because of some people's casual words! Tao is not enough, but also requires practice.

8. I treat those people seriously and sincerely. Although I didn't do anything special, I forgot later, because people don't change, sometimes I don't care, I don't understand, and I swear.