Who said "What we seek is within us, not outside."?

This quote is attributed to Heraclitus.

What we seek is within us, not outside. - Heraclitus

"What we seek is within us, not outside."

Heraclitus Solitude

Philosopher Ancient Greek 540–480

"Change is the only constant in life."

"No one steps in the same river twice."

"The path up and down are one and the same."

"Conflict is the father of all things."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."