Searching for a quote for "Human all too Human

Hallo everybody!
I've recently found a quote of Nietzsche, presumably from "Human, all too Human", but could not find its equivalent in English. Loosely translated, it goes something like this - "The man of truth will end up finding out that he has lied his entire life" -
If this rings a bell with anyone, and they can refer me to its valid translation in English, that would be well and above wonderful!
Thank you!
Sabina