If any one of about 40 physical qualities had more than slightly different values, life as we know it could not exist.
Stephen HawkingI don't have much positive to say about motor neuron disease, but it taught me not to pity myself because others were worse off, and to get on with what I still could do. I'm happier now than before I developed the condition.
Stephen HawkingOur only chance of long-term survival is not to remain lurking on planet Earth, but to spread out into space.
Stephen Hawking