The author boxed the compass of negation in his article.

该作者在文次探讨了各种反面意见。

No reasonable negation can be offered.

没有合理反对意见可以提出。

Although not universal, a vertical head nod for approval and a lateral headshake for negation is a common pattern across many cultures.

在许多文化，人们上下点头表示同意，左右摇头表示否定，尽管不是所有文化都遵循这个模式。