如果我们不去学习，而且又选择远离他人，我们可能会因此变得愚蠢。

If we don't learn, and choose to distance ourselves from others, we might be getting dumb.

youdao

放下成见- 成见会使人变得愚蠢，成见会在我们大脑里丢进不正确的想法，它对我们蒙蔽了真相。

Free of prejudice – Prejudice makes us dumb. It put thoughts in our head. Thoughts that shouldn't exist, and blind us from truth.

youdao

When they talked they suddenly became frantic and almost silly.

她们一说话就会变得粗野，甚至愚蠢。

耶鲁公开课 - 1945年后的美国小说课程节选