In the Bible it is written, "Where your treasure is, there will your heart be also." If our gain is only in objects of a passing nature, our heart will find no gain in this life or in the hereafter. Those who trust in transitory gain must accept the inevitable disappointment, both here and in the hereafter. Everybody in this world is selfish; for is it not true that the sages who renounce that which is valued by worldly people, after all only take up that which they understand to be really the greater gain? The only difference between their action and that which seems entirely selfish in those who are not sages, is that they sacrifice what they perceive to be a false gain. For anyone to do otherwise is to be like the dog which was running after its own shadow.