Answer: Treat others fairly, everyone is equal
Step-by-step explanation:
Two Catholic teachings on justice for example are that people must treat others fairly and that everyone is equal in the eyes of God. Peace is the most important thing when it comes to catholic teachings because when somebody has peace in him, he can live in harmony without conflicts.
The first teaching which is considering that everyone must treat others fairly means that people must treat others as they would like to be treated by other people which means that they should not do bad to others.
The second teaching that is referring to equality stands for that everyone is equal in the eyes of God and that Catholics cannot discriminate against others.