Feudal thought, right or wrong?

We can't generalize. Feudal thought has both dross and essence, which is wrong and should be eliminated. Doing the essence is right and should be carried forward. For example, respecting the old and loving the young is also a feudal thought, but now it is respected as a traditional virtue.

On the other hand, can modern ideas be enough? Therefore, both modern and feudal thoughts should discard dross and promote righteousness.