When he to whom one speaks does not understand, and he who speaks himself does not understand, that is metaphysics.

When he to whom one speaks does not understand, and he who speaks himself does not understand, that is metaphysics.

当一个人对他说话的人不理解，他自己也不理解时，这就是形而上学。

-- Francois Marie Arouet 阿鲁埃