The three big ones do, are there more?
"I am the Word, the truth and the light. Nobody get's to the father (ie god) then through me." Ascribed to Jesus, whos' life story got written down 40 years later.
> facets of truth
Since Immanuel Kant we "know", that we can never get to the truth, since our senses are easily fooled. The basis of rational science for me. We can only say what is least likely to be wrong.
[Addendum]
Socrates knew he knew nothing.