在我看来，对农民工的评价中，肯定一切或否定一切都是片面的。

In my opinion, in the appraisal of migrant workers, it is one-sided to affirm everything or to negate everything.

youdao

皮浪的否定一切知识的可能性的不可知论是古代怀疑论的最后结论。

Then Pyrrho proposed his agnosticism which negated the possibility of all knowledge and was regarded as a final conclusion of ancient skepticism.

youdao