Tao Te Ching

“A ruler's prosperity depends on his exercising a restraint upon himself... When a ruler rejoices in the joy of his people, they also rejoice in his joy; when he grieves at the sorrow of his people, they also grieve at his sorrow.”

— Mencius 孟子 372 – 289 BCE via James Legge
(Mengzi)
from Book of Mencius 孟子