From A Chinese Garden of Serenity (1959), by Hung Tzu-ch’eng, translated by Chao Tze-chiang:

The radiant sun and the blue heaven may suddenly be blotted out by claps of thunder and strokes of lightning; a sweeping windstorm and a furious tempest may quickly end with a resplendent moon and a clear sky. How, then, can the Ether be in the least coagulated or the Great Void be in the least obstructed? The human mind should be of this nature.