I was listening to the Feynman’s lectures on my way from work today, and he said something that got me laughing so hard that I had to stop the CD for a while. He was talking about the evidence we have to conclude that gravity works all the way from our scale to the scale of galaxy clusters. He was showing a picture of a galaxy cluster to his students, and he said “If you cannot see gravity acting here, you have no soul”. I’ve always heard of “having soul” as something related to the appreciation of certain types of music and art, so I figured I must not have any. But if the appreciation of physical laws qualifies me, then I am a soul man!