In every path of life, let us all strive to attain the mind of Christ. Let us assist one another, neither envying those who surpass us, nor despising those who may lag behind. And if anyone should excel another, let him beware lest he be like the Pharisee in the Gospel, who recounted his good deeds to God; rather let him follow the teaching of Christ, and say, I am an unprofitable servant. No one more truly has faith than he who distrusts himself. No one is really farther from true religion than he who thinks himself most religious.

Erasmus - The life and character of Erasmus (pg 195) - A.R. Pennington

Several years ago, I remember learning this principle for the first time. At the time, I thought rather highly of myself, or so I remember. I remember thinking I had attained some kind of status in knowing more than even my elders. I thought I was a scholar. I was but an unprofitable servant.

I was quantifying my worth. I thought I had, say, 500. And those around me (including my elders) had significantly less, say 100. But after learning this principle, it occurred to me: If I have 500, and my brother only 100, am I really any closer to infinity? The truth of mathematics is an obvious no. But the truth of the matter, even more so, is that I cannot weigh my own heart let alone my brother's. What a fool I am to attempt to play judge. I am just an unprofitable servant.