"I have often regretted my speech, never my silence."

"I am a man of peace, but I must fight for it."

"There are a lot of people who have only one thought all their lives, and they never come into conflict with it. I am not one of them; I learn from life, I learn as long as I live, I learn even today. …"

"Jena came twenty years after the death of Frederick the Great; the crash will come twenty years after my departure if things go on like this."

"Politics is not a science to be learned, it is an art, and he who cannot do it had better stay away from it."