Quote by Johann Tetens

"Man is born free, and everywhere he is in chains."

"The greatest discovery of my generation is that human beings can alter their lives by altering their attitudes."

"Education is the most powerful weapon which you can use to change the world."

"In the middle of difficulty lies opportunity."

"You can't expect to be happy if you're surrounded by mess."

"Health and happiness - these are true wealth"

"How can you live like this? It's like a pigsty!"

"You're going to get sick living like this."