Zhuangzi was an influential Chinese philosopher who lived around the 4th century BCE during the Warring States Period, corresponding to the Hundred Schools of Thought philosophical summit of Chinese thought. His name is sometimes spelled Chuang Tsu, Chuang Tzu, Zhuang Tze, Chouang-Dsi, or Chuang Tse. Zhuangzi allegedly lived during the reign of King Hui of Liang and King Xuan of Qi, in the span from 370 to 301 BCE. Zhuangzi was from the Town of Meng in the State of Song (now Shangqiu, Henan). His given name was Zhou. He was also known as Meng Official, Meng Zhuang, and Meng Elder (Méng Lì; Méng Zhuang, Méng sou, respectively). 

Chuang Tzu Teachings:

When the body is kept bustling about without stop, it becomes fatigued

When the mind is overworked without stop, it becomes worried, and worry causes exhaustion

The nature of water is that it becomes clear when left alone, and becomes still when undisturbed.

It is the symbol of heavenly virtue

Flow with whatever may happen and let your mind be free. Stay centered by accepting whatever you are doing. This is the ultimate.

Happiness is the absence of striving for happiness.