Mbh 12.28.4d

Alas, no one understands that the world is sinking on the ocean of Time that is so very deep and that is infested with those huge crocodiles called decrepitude and death. Many physicians may be seen afflicted with all the members of their families, although they have carefully studied the science of Medicine.[82] Taking bitters and diverse kinds of oily drugs, these succeed not in escaping death, like ocean in transcending its continents. Men well-versed in chemistry, notwithstanding chemical compounds applied judiciously, are seen to be broken down by decrepitude like trees broken down by elephants. Similarly, persons possessed of ascetic merit, devoted to study of the Vedas, practising charity, and frequently performing sacrifices, succeed not in escaping decrepitude and death. As regards all creatures that have taken birth, neither years, nor months, nor fortnights, nor days, nor nights, that have once passed, do ever return. Man, whose existence is so transitory, is forced, in course of Time, whether he will or not, to come upon this inevitable and broad path that has to be trodden by every creature.[83] Whether the body springs from the creature or the creature springs from the body, one's union however, with wives and other friends is like that of travellers in an inn.[84] One cannot obtain a lasting companionship with anyone. One cannot obtain such companionship with one's own body. How then it can be had with anyone else? Where, O king, is thy sire today and where thy grandsire? Thou beholdst them not today and they do not behold thee. O sinless one! No person can see either heaven or hell. The scriptures, however, are the eyes of the virtuous. O king, frame thy conduct according to the scriptures. With pure heart, one should practise first the vow of Brahmacharya and then beget children and then perform sacrifices, for paying off the debt one owes to the Pitris, the gods, and men.