Who said "Without struggle, there is no progress."?

This quote is attributed to Mao Zedong.

Without struggle, there is no progress. - Mao Zedong

"Without struggle, there is no progress."

Mao Zedong Perseverance

Communist Leader, Dictator Chinese 1893–1976

"It is right to rebel against the reactionaries."

"Women hold up half the sky."

"All reactionaries are paper tigers."

"Guerrilla warfare will be the only way."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."