“I have never yet met a healthy person who worries very much about his health or a really good person who worries much about his own soul.”

“As J. B. S. Haldane said when asked what evidence might contradict evolution, 'Fossil rabbits in the Precambrian.”

“When challenged by a zealous Popperian to say how evolution could ever be falsified, J. B. S. Haldane famously growled: 'Fossil rabbits in the Precambrian.”

“I have never yet met a healthy person who worries very much about his health or a really good person who worries much about his own soul.”