Problem description:

What does this sentence mean?

Analysis:

Zhang in Ming Dynasty: "People can't make friends without addiction, because of ruthlessness, people can't make friends without blemish, because there is no true qi."

A person is neither addicted nor perfect, steady, cautious and has no personality. Such people are either extremely weak and incompetent or extremely scheming. Both of them lack "deep affection" and "true qi", and the lack of that little bit makes people become the essential blood of people. To associate with such people is either to eat chicken ribs or tiger skin for meat.