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

Castles in the air -- they are so easy to take refuge in. And so easy to build 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!"

"It was then that I began to look into the seams of your doctrine. I wanted only to pick at a single knot; but when I had got that undone, the whole thing raveled out. And then I understood that it was all machine-sewn."

You should never have your best trousers on when you turn out to fight for freedom and truth.