According to the trilemma, what we think we know, what we hold to be true is impossible to ever prove.
根据三难困境,我们认为我们知道的事情、我们认为是真实的事情永远无法得到证明。
英语百科
Trilemma 三难困境
A trilemma is a difficult choice from three options, each of which is (or appears) unacceptable or unfavourable.
There are two logically equivalent ways in which to express a trilemma: it can be expressed as a choice among three unfavourable options, one of which must be chosen, or as a choice among three favourable options, only two of which are possible at the same time.