If you realize that all things change, there is nothing you will try to hold on to. If you aren't afraid of dying, there is nothing you can't achieve. Trying to control the future is like trying to take the master carpenter's place. When you handle the master carpenter's tools, chances are that you'll cut your hand.
Whoever relies on the Tao in governing men doesn't try to force issues or defeat enemies by force of arms. For every force there is a counterforce. Violence, even well intentioned, always rebounds upon oneself. The Master does his job and then stops. He understands that the universe is forever out of control, and that trying to dominate events goes against the current of the Tao. Because he believes in himself, he doesn't try to convince others. Because he is content with himself, he doesn't need others' approval. Because he accepts himself, the whole world accepts him.
A great country needs more people to serve it. A small country needs more people to serve. So, if both shall get what they need, the great country ought to yield.
If people do not revere the Law of Nature It will adversely affect them. If they accept It with knowledge and reverence, It will accommodate them with balance and harmony.