I present two arguments that aim to establish logical limits on what we can know. More specifically, I argue for two results concerning what we can know about questions that we cannot answer. I also discuss a line of thought, found in the writings of Pierce and of Rescher, in support of the idea that we cannot identify specific scientific questions that will never be answered.

中文翻译：

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对于无法回答的问题我们能知道什么？

我提出两个论点，旨在对我们所能知道的事物建立逻辑限制。更具体地说，我主张两个结果，即关于我们无法回答的问题我们能知道什么。我还讨论了皮尔斯和雷舍尔著作中的一条思想路线，它支持我们无法识别永远无法解答的具体科学问题的观点。