"The wicked alone are happy, because they alone are free."

"I have always been convinced that the universe is a place of perpetual motion, and that this motion is always tending towards destruction."

"My only regret is that I was born into a world of cowards, who tremble at the sight of truth."

"I've been to Hell. You've only read about it."

"Nature has endowed each of us with a capacity for kindly feelings: let us not squander them on others."