Tao Te Ching, Chapter 33

Translation

33. 1. He who knows other men is discerning; he who knows himself is intelligent. He who overcomes others is strong; he who overcomes himself is mighty. He who is satisfied with his lot is rich; he who goes on acting with energy has a (firm) will.

2. He who does not fail in the requirements of his position, continues long; he who dies and yet does not perish, has longevity.

Practical Reading

Knowing others requires wisdom; knowing yourself requires enlightenment. In personal development, self-awareness precedes growth. External assessment provides data, but internal understanding provides wisdom.