The highest tone is hard to hear.
The truly great ones rely on substance, and not on surface, hold on to the fruit, and not to the flower.
A good runner leaves no footprints.
Force is followed by loss of strength. This is not the way of the Tao. That which goes against the Tao comes to an early end.
The farther you go, the less you know.
Water is fluid, soft, and yielding. But water will wear away rock, which is rigid and cannot yield. As a rule, whatever is fluid, soft, and yielding will overcome whatever is rigid and hard. This is another paradox: what is soft is strong.