Saturdays with Calvin #24

If man had no title to glory in himself, when, by the kindness of his Maker, he was distinguished by the noblest ornaments, how much ought he to be humbled now, when his ingratitude has thrust him down from the highest glory to extreme ignominy? At the time when he was raised to the highest pinnacle of honour, all which Scripture attributes to him is, that he was created in the image of God, thereby intimating that the blessings in which his happiness consisted were not his own, but derived by divine communication. What remains, therefore, now that man is stripped of all his glory, than to acknowledge the God for whose kindness he failed to be grateful, when he was loaded with the riches of his grace? Not having glorified him by the acknowledgment of his blessings, now, at least, he ought to glorify him by the confession of his poverty. In truth, it is no less useful for us to renounce all the praise of wisdom and virtue, than to aim at the glory of God. Those who invest us with more than we possess only add sacrilege to our ruin. For when we are taught to contend in our own strength, what more is done than to lift us up, and then leave us to lean on a reed which immediately gives way? 

Institutes of the Christian Religion 2.2.1, John Calvin, translated by Henry Beveridge, Hendrickson, pg. 157-158.