That's the origin of all our ineptness, stupidity and cruelty.

所以我们才这么蠢笨傻。

Can we not talk about my technological ineptness?

能不能不讨论我是个电子白痴这个问题了？

Dick remained in his seat wearing an odd expression; then he crashed into words with a harsh ineptness.

迪克表情古怪地坐在座位上。然后他用一种严厉的无能来说话。