As regards the quietude of the sage, he is not quiet because quietness is said to be good. He is quiet because the multitude of things cannot disturb his quietude. When water is still, one's beard and eyelashes are reflected in it. A skilled carpenter uses it in a level to obtain a measurement. If still water is so clear, how much more are the mental faculties! The mind of the sage is the mirror of heaven and earth in which all things are reflected.
ZhuangziWe cling to our own point of view, as though everything depended on it. Yet our opinions have no permanence; like autumn and winter, they gradually pass away.
ZhuangziTo use what has a boundary to pursue what is limitless is dangerous; with this knowledge, if we still go after knowledge, we will run into trouble. Do not do what is good in order to gain praise. If you do what is bad be sure to avoid the punishment. Follow the Middle Course, for this is the way to keep yourself together, to sustain your life, to care for your parents and to live for many years.
ZhuangziThe hidden so-called scholars of old did not hide themselves and refuse to be seen. They did not close the door on their words and refuse to let them out. They did not shut away their wisdom and refuse to share it. But those times were all haywire. If it had been possible for them to act, they could have done great things, bringing all to Oneness without any sign of doing so. However, the times were not favorable and it was not possible, so they put down deep roots, remained still and waited. this was the Tao by which they survived.
Zhuangzi