Fill your bowl to the brim
and it will spill.
Keep sharpening your knife
and it will blunt.
Chase after money and security
and your heart will never unclench.
Care about people's approval
and you will be their prisoner.

Do your work, then step back.
The only path to serenity.
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"Lao Tzu is believed to have been a Chinese philosopher (a person who seeks to answer questions about humans and their place in the universe) and the accepted author of the  Tao te ching,  the main text of Taoist thought. He is considered the father of Chinese Taoism (a philosophy that advocates living a simple life).

Read more: Lao Tzu Biography - life, name, death, school, book, old, information, born, time http://www.notablebiographies.com/Ki-Lo/Lao-Tzu.html