"The folkish philosophy of life must succeed in bringing about a nobler age, in which men no longer think of polishing up the races of dogs, horses, and cats, but in improving the race of man himself."

"The man who has no sense of history is like a man who has no eyes or ears."

"Anyone who sees and paints a sky green and fields blue ought to be sterilized."

"The broad masses of a population are more amenable to the appeal of rhetoric than to any other force."

"Only a part of the German people is willing to sacrifice itself. The others want to live."