Tao Te Ching
Tao Te Ching, Chapter 71
Chapter 71 of Tao Te Ching translated by James Legge (1893)
Translation
71. 1. To know and yet (think) we do not know is the highest (attainment); not to know (and yet think) we do know is a disease.
2. It is simply by being pained at (the thought of) having this disease that we are preserved from it. The sage has not the disease. He knows the pain that would be inseparable from it, and therefore he does not have it.
Practical Reading
Knowing not-knowing represents highest knowledge. In learning, admitting ignorance opens growth. What do you believe you know that you actually don't?