As an ethical principle, Zhuangzi offers us the concept of availability. For him, being available goes beyond specific moral principles, for example not lying or not hurting others, which have only limited and circumstantial value, as we experience on a daily basis. The same goes for action or communication, where a rule only applies in certain circumstances. For example, prudence, which has little sense in an emergency. Or courage, which becomes reckless when the danger is too great.
Availability is the ability to assess a situation and determine the type of appropriate action or reaction. It implies on the part of the subject a capacity for distancing, an ability to assess situations and plasticity.