Great wisdom is generous; petty wisdom is contentious. Great speech is impassioned, small speech cantankerous. — Chuang-tzu. Chinese philosopher (c.369 – c.286 BC) Speech
A well frog knows nothing of the ocean for it is bound by its space. The Spring insect knows nothing of the Winter because it is bound to a single season.
The perfect man uses his mind as a mirror. It grasps nothing. It regrets nothing. It receives but does not keep.