Ludwig Wittgenstein

What Ludwig had to say is pretty interesting. However, what I want to point out is the last of the passages: "The truth can be only spoken by someone who already lives inside it; not by someone who still lives in untruth and only sometimes reaches out from untruth toward it." So since we live in an imperfect world full of lies and deceit, how can an "outsider" know that someone else is telling the truth and is actually derived from truth. I understand the underlying point Ludwig is trying to make about eliminating heresy and expanding the knowledge that is not compromised from heresy but the fact of the matter is, is that if individuals lived by this doctrine, would not there be many claiming that they descend from and are encapsulated in truth? I know that I will not be one of the one's to proclaim that I am too lazy to speak truth, and don't get this tainted view of what I am, because I am human and all humans are susceptible to the human nature of seeking power, in any degree. Truth is power.