Here, in this world, everything has got six changes. Birth, then stay, and then develop, then by-products, then dwindle, then finish. Everything. So the motorcar civilization, it was born. And now the time has come it is dwindling, and it will be finished. Just like railway; railway no more interested, anybody. But when it was invented, it was very important. Now it is useless. That is the nature of everything here in this material world. It cannot be permanent benefit. That they do not know. They become very enthusiastic when some new thing is born. Child is born, I am very happy. The same child, when he’s dead, I am unhappy. But one must know: what is born, it will die. So everything material has got a period of development, then it dwindles, and then finishes. So from this nature’s law, we can see this motorcar attraction, utility, it will finish. It will not stay.

Srila Prabhupada; Garden Conversation — June 14, 1976, Detroit