Attain the center of emptiness,
Preserve the utmost quiet;
As myriad things act in concert,
I thereby observe the return.
Things flourish,
Then each returns to its root.
Returning to the root
Is called stillness:
Stillness is called return to Life,
Return to Life is called the constant;
Knowing the constant is called enlightenment.

Lao Zi (6c BCE-), Lao Tzu or Lao Zi was an ancient Chinese philosopher and writer. He is the reputed author of the Tao Te Ching, the founder of philosophical Taoism.