Having good behaviors is important in society because it allows you to build a stronger relationship with each other. It allows you to be at ease with one another, and communicate freely without creating a misunderstanding. For example, if you were having a bad day and indicate your in a foul mood. The person you talk to will be misunderstood, and will probably create a heated argument with you. I hope this help. :)
We need examples of statements unless you’re talking generally then there is way too much information to cover for this questions but “Hold fast to dreams, For if dreams die
Life is a broken-winged bird, That cannot fly.” Is quote said by Langston Hughes. You can interpret this to have meaning to MLK because he literally writes a momentous speech called “I have a Dream”.
Possibly "Matriarchy", which means "a society ruled by women"