O, think of all this. When life itself is unstable, one should in the very beginning avoid that act in consequence of which one would have to indulge in regrets having entered the chamber of woe. True it is that a person other than Bhargava, the author of the science of morality is liable to commit actions that go against morality. It is seen, however, that a just notion of consequence is present in all persons of intelligence. Thou art an aged scion of Kuru’s race.

In plain words: Since life is uncertain, avoid from the start any act you would later regret. Anyone except a perfect moral teacher like Bhargava can make mistakes, but intelligent people can still see consequences ahead. Vidura reminds Dhritarashtra that he is an elder of the Kuru family.