There are four things desirable in this material world, namely, good parentage, sumptuous wealth, sufficient education, and good beauty. These things are sometimes impediments in the service of the Lord because such persons with great parentage, wealth, etc., becomes materially puffed up, and thus deviates from Krishna Consciousness, but when they are employed in the service of the Lord, their value becomes many more times greater. Just like zero has no value, but when zero is placed on right side of one, the value of zero enhances to 10 times; similarly, our life, wealth, intelligence, and words become 100 times 100 greater and greater if they are employed in the service of the Lord.
Letter to Janardana, 26 April, 1968