无理性

An animal has senses but no reason.

动物有感觉, 而无理性。

The most typical performance of stubbornness is to quarrel or even vituperate unreasoningly.I can say that, 90% of the people on line are only making irresponsible remarks.

顽固最典型的表现就无理性地争执甚至漫骂，我可以说，90%的人都责任地信口雌黄，例子我都多举了。