Who said "Progress requires the courage to abandon tradition."?

This quote is attributed to Xenophon.

Progress requires the courage to abandon tradition. - Xenophon

"Progress requires the courage to abandon tradition."

Xenophon Change

Historian Soldier Ancient Greece 430–354

"The sweetest of all sounds is praise."

"He who wishes to be obeyed must know how to command."

"It is impossible for a man to be cheated by anyone but himself."

"Know thyself."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."