Look at World War II, at Hitler's cruelty. The more cruelty, the more enthusiasm for revolution.
Learn from the masses, and then teach them.
Long distance running is particularly good training in perseverance.
Women hold up half the sky.
In transforming backward agricultural China into an advanced industrialized country, we are confronted with arduous tasks and our experience is far from adequate. So we must be good at learning.
People like me sound like a lot of big cannons.