Knowing others is intelligence; knowing yourself is true wisdom. Mastering others is strength; mastering yourself is true power.
Lǎozi was a Chinese philosopher (also called Lao Zi, Lao Tzu, Lao Tse, or Lao Tze), The Tao Te Ching (6th–5th century BC), Ch. 33, as interpreted by Stephen Mitchell (1992).
Categories
Lao Tzu
