Knowledge without action is merely philosophy; action withou... - Frederick the Great

"Knowledge without action is merely philosophy; action without knowledge is merely folly."

Frederick the Great Knowledge

Military King Prussian 1712–1786

More from Frederick the Great

"I have resolved never to start an unjust war, but never to end a just one except by conquest."

"A prince who loves his people and is loved by them is never in danger of rebellion."

"The more you own, the more it owns you."

"I am the first servant of the state."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."