"It is inexcusable for scientists to torture animals; let them make their experiments on journalists and politicians."

“There are three Empires. First there is the Empire which was founded on the tree of knowledge. Then there is the Empire founded on the tree of the Cross. The third is still a secret Empire which will be founded on the tree of knowledge and the tree of the Cross — brought together.”

“I'm afraid for all those who'll have the bread snatched from their mouths by these machines. You are very fond, sir, of talking about the consideration we owe to the community; it seems to me, however, that the community has its duties too. What business has science and capitalism got, bringing all these new inventions into the works, before society has produced a generation educated up to using them!”

“I don't know whether you find also in your part of the world that there are certain people who go zealously snuffing about to smell out moral corruption, and, as soon as they have found some, put the person concerned into some lucrative position where they can keep their eye on him. Healthy natures are left out in the cold.”

“There is a big black hat and it makes you invisible. Have you heard of that hat? You put it on and then no one can see you.”

“A marriage based on full confidence, based on complete and unqualified frankness on both sides; they are not keeping anything back; there's no deception underneath it all. If I might so put it, it's an agreement for the mutual forgiveness of sin.”

“When we dead awaken. … We see that we have never lived.”