某人做腦部手術時，醫生同佢安裝咗超級透視眼。呢個透視眼可以準確噉睇到一千公里以內嘅嘢（客觀上正確）。當佢醒咗之後見到美國總統喺五百公里外嘅白宮到工作，但佢對增加視力呢件事係一無所知，佢唔知點解可以得到呢種能力。但佢相信自己嘅視力。噉樣睇時，佢只係相信，唔算係知道。就算成個過程係客觀可靠。
When someone had brain surgery, the doctor and he had a super fluoroscopic eye fitted to him. This clairvoyant eye can accurately see things within a thousand kilometers (objectively correct). When he woke up and saw the President of United States working at the White House five hundred kilometers away, he knew nothing about increasing his eyesight, and he didn't know why he could get it. But he believed in his eyesight. When he looked at it this way, he just believed, not knew. Even if the whole process is objective and reliable.