In the world there is nothing more submissive and weak than water. Yet for attacking that which is hard and strong nothing can surpass it.
LaoziThey can see their neighbors. Roosters and dogs can be heard from there. Still, they will age and die without visiting one another.
LaoziIf you realize that all things change, there is nothing you will try to hold on to. If you are not afraid of dying, there is nothing you cannot achieve
LaoziClay is fashioned into vessels; it is on their empty hollowness that their use depends. Doors and windows are cut out to make a dwelling, and on the empty space within, its use depends. Thus, while the existence of things may be good, it is the non-existence in them that makes them serviceable.
Laozi