You don't get the more modest conclusion invisible things can't be destroyed or it's a whole lot harder to destroy them.

不是得出个更谦虚的结论,无形的东西不会毁灭或者,要毁灭它是不容易的。

耶鲁公开课 - 死亡课程节选

You can't alter or destroy perfect circularity.

你不能改变或摧毁圆形。

耶鲁公开课 - 死亡课程节选