The Christian life is the way of the cross, the way of foolishness to the world. We have nothing to boast in, because all the gifts and talents we have were given to us, we didn't earn them. Therefore, we can serve instead of judge, and sacrifice instead of becoming puffed up.
"For who sees anything different in you? What do you have that you did not receive? If then you received it, why do you boast as if you did not receive it?" 1 Corinthians 4:7