It appears that the input text is a jumbled mix of OCR output from different sources, including some non-English text and what seems to be a passage from a historical document written in English and Chinese. I will focus on the coherent English passage to proofread and format it according to the given rules.
The coherent passage appears to be discussing the impact of barbarian invasions on a community and the importance of taking action. Here is the proofread and formatted version of this passage in Markdown:
# Ceremonies and Brotherly Duties We have ceremonies & music to bring our mind in order. There are the brotherly duties, reciprocity and faithfulness to show us the rules of life that all people under Heaven can enter into the road of the Doctrine of the clan. We have all this from generation to generation, never vanishing away. ## Disturbed Times Now in this disturbed times, we have always to suffer from the barbarians' inroads. They fetter our men, revile our women. Where is there still something left of the heavenly good nature? The human things are trodden down. Nothing of a compassionate heart is to be seen. When the eyes see all these things, our heart is wounded. Those who have a soul cannot restrain their anger to see how the laws are broken. Every human heart must be wounded. ## Calamities Nearing By this time, the barbarians have entered our country. Calamities are nearing our four walls. Who can be silent to stand at the side with folded arms? Is once Ngan Tin (alias Pan Tin) lost, then is the "lip lost and the teeth will be cold". Serious danger is now everywhere. This cannot be treated in a leisurely way. Should our ancestors lose their bliss? Thinking over this, I say, whether there is victory or defeat, one must use all strength. We must not be quiet to wait for the danger coming along. When our people should live on in quietness & our borders remain strong, we must not postpone.The rest of the input text appears to be either unrelated or too jumbled to be coherently proofread. The passage above has been formatted into proper paragraphs and headers, with minor corrections for spelling and spacing.