"If we were bees, ants, or Lacedaemonian warriors, to whom personal fear does not exist and cowardice is the most shameful thing in the world, warring would go on forever. But luckily we are only men —…"

"We are living in an age of specialization. This is a dangerous trend."

"I am no friend of probability theory, I have hated it from the first moment when our dear friend Max Born gave it birth."

"The world is a canvas, and we are the artists."

"Consciousness cannot be accounted for in physical terms. For consciousness is absolutely fundamental. It cannot be accounted for in terms of anything else."