Srimad Bhagavata Purana

One’s riches, beautiful wife and female friends, one’s sons and daughters, one’s residence, one’s domestic animals like cows, elephants and horses, one’s treasury, economic development and sense gratification — indeed, even the lifetime in which one can enjoy all these material opulences — are certainly temporary and flickering. Since the opportunity of human life is temporary, what benefit can these material opulences give to a sensible man who has understood himself to be eternal?