"It is so obvious that the great good and the terrible evil in the world today are the sweet and the bitter fruits of the rearing of yesterday’s children. As we train a new generation, so will the world be in a few years. If you are worried about the future, then look to the upbringing of your children. Wisely did the writer of Proverbs declare, “Train up a child in the way he should go: and when he is old, he will not depart from it” (Proverbs 22:6).
"When I was a boy, we lived on a fruit farm in the summer. We grew great quantities of peaches. Our father took us to tree pruning demonstrations put on by the agricultural college. Each Saturday during January and February, we would go out to the farm and prune the trees. We learned that by clipping and sawing in the right places, even when snow was on the ground and the wood appeared dead, we could shape a tree so that the sun would touch the fruit which was to come with spring and summer. We learned that in February we could pretty well determine the kind of fruit we would pick in September.
"E. T. Sullivan once wrote these interesting words: “When God wants a great work done in the world or a great wrong righted, he goes about it in a very unusual way. He doesn’t stir up his earthquakes or send forth his thunderbolts. Instead, he has a helpless baby born, perhaps in a simple home and of some obscure mother. And then God puts the idea into the mother’s heart, and she puts it into the baby’s mind. And then God waits. The greatest forces in the world are not the earthquakes and the thunderbolts. The greatest forces in the world are babies.”1
"And those babies, I should like to add, will become forces for good or ill, depending in large measure on how they are reared. The Lord, without equivocation, has declared, “I have commanded you to bring up your children in light and truth” (D&C 93:40)."
Gordon B. Hinckley, “These, Our Little Ones,” Ensign, Dec 2007, 4–9