"You cannot rely on anyone else to argue you out of your mistakes; you cannot rely on anyone else to save you; you and only you are obligated to find the flaws in your positions"

It wasn't much of an "aha!" moment- when I first read it, I thought something along the lines of "Of course higher standards are possible, but if no one can find flaws in your argument, you're doing pretty well." but the more I thought about it, the more I realized that EY made a good point. I had later stumbled upon flaws in my long standing arguments that I had overlooked, yet no one called me on.

Not only was the standard lower than I had previously realized, but it is entirely possible for someone to 1) not believe you 2) not be able put their refutation into words, and 3) still be right.

http://www.overcomingbias.com/2008/09/refutation-prod.html