No one is righteous?
Lots of people read “There is no one who is righteous, not even one” etc (Rom 3:10-18) and they get the idea that Paul is saying no human is righteous in their natural state, that we are all horribly fallen, radically tarnished before a holy God, unable to achieve ourselves any meaningful level of righteousness.
People so often don't bother to read context.
Paul in Romans 3:10-18 makes six quotes from Old Testament passages. I strongly recommend when reading the New Testament that you have a look at the Old Testament context for every Old Testament quote... context can be very important.
The above interpretation of Romans 3 contradicts all six of the passages Paul is quoting from... quite an impressive level of disachievement all things considered.
I know it's an extremely daring and radical suggestion... but perhaps Paul didn't systematically and repetitively misquote and misinterpret the Old Testament? Perhaps Paul did know the context?
Edited because I still proper grammar can't use.