Who said "To know oneself is the beginning of all wisdom"?

This quote is attributed to Sophocles.

To know oneself is the beginning of all wisdom - Sophocles

"To know oneself is the beginning of all wisdom"

Sophocles

Tragic Playwright Ancient Greece 496–406

"Wisdom brings suffering to those who possess it."

"Nobody likes the man who brings bad news."

"All that is and will be comes forth from necessity."

"To the man who is afraid everything rustles."