The self is the only knowable existent.

自我是唯一可知的存在物。

At any rate that certainly is not knowable a priori.

不管怎样，那肯定不是一个可知的先验。

In addition, some items are just not knowable until runtime.

此外，有些内容到运行时才能知道。

We have this clever illusion that the world is a knowable place.

我们有这种聪明的幻觉，就是世界是个可认知的地方。

All of these things are knowable and definable and yet obscured and opaque.

所有这些事情都是可知的、确定的，但又是模糊而朦胧的。