“There’s no such thing as truth, epistemologically speaking.”
This is the response I got in response to mentioning that discourse is one of the best ways we have to find truth. From context, it seems to me that this means that we cannot know truth, or more generously, that we can’t know if we can know truth.
If first is the case, then everything reduces to language games and wisps of thought and beliefs without ground. We can’t know truth, so why believe in anything? Selecting belief systems for taste, or power, or arbitrarily is just as good.
If second is the case, that doesn’t free us of our moral obligation to know the truth to the best of our abilities. It may be the case that we can’t know truth, but it is a better life to live as though we can know what truth is.