When good manners shall lie all in one or two man's hands and they unwashed too tis a foul thing?

This phrase suggests that when good manners and social etiquette are concentrated in the hands of a few individuals, especially those who lack basic cleanliness or hygiene, it reflects poorly on society as a whole. It implies that true civility cannot be upheld by those who do not take care of themselves, highlighting the importance of personal integrity and respect in maintaining social order. Ultimately, it underscores the idea that good manners should be more universally shared rather than monopolized by a select few.