To conquer the heart, Judaism invests in serious, lifelong education. The centerpiece of the Sh'ma urges us to be our children's first teachers. Opportunities abound for initiating youngsters in God's words and ways. Persistent and responsible instruction can help prevent children from abusing the freedom of choice that is their right. And because the heart remains full of ferment, each child and every generation must start the task of self-control afresh.
Culture is a flawed substitute for heredity.
Our genes do not transmit moral achievement. For Jeremiah and Ezekiel, the end of days is to be marked by no more than a transformation of the human heart. To heed God's laws will become natural. Till then the task is ours alone. And so the Sh'ma implores us to implant the Torah in our hearts.