You've just contradicted yourself in two sentences, Cathy.

你说的两句话自相矛盾了，凯西。

Wait, but aren't you contradicting yourself?

等等，难道你不是在自相矛盾吗？

And don't be afraid to contradict yourself.

不要害怕反驳自己。

Even if you say, " I'm going to stop thinking and then move to disprove what you're saying, " you would be contradicting yourself.

即使你说，“我要停止思考，然后就能反驳你所说的定论”，你也会自相矛盾。