Gratia non tollit naturam
Grace does not abolish nature. ~Thomas Aquinas

Salvation does not change human nature but allows us to accept our own failings and treat the failings of others with grace.  We are not prideful because we believe that we do not know and cannot see how we ourselves are driven by human nature toward serving our own good at the expense of others; we are instead humble, looking for opportunities to make sacrifices for the good of others as repentance for the harm we have done, knowingly and unknowingly.

Grace liberates us to accept ourselves and others and thus to live courageous, honest, open lives–with no reason to pretend, in no position to judge.