You've misquoted (or, you're using a shoddy paraphrase). "It would be better if there were but one inhabitant to a square mile, as where I live. The value of a man is not in his skin, that we should touch him." - Thoreau (Walden) It means a person's value is not found in the physical form, if we wanted to make contact with that value.

Well,the sentence you write is wrong.

It doesn't mean anything. Where did you read this? It is utter nonsense.