The Austrian physicist Wolfgang Pauli was renown for one of the keenest minds in history. He was well-known for his quick penetration into the very essence of the theoretical analysis presented by his colleagues--and for his sure sense of error.
It was consequently not at all surprising that, at his death in 1958, heaven awaited his arrival eagerly.
"I presume," said St. Peter upon first greeting Pauli, "that there is much in the world of physics that puzzled you during your lifetime and that you would be glad to have the opportunity of understanding now."
"Yes," replied Pauli, "for to tell the truth, I am weary of watching my colleagues go wrong. For instance, I have always been disturbed over the fact that the proton has exactly 1836.11 times the mass of the electron though the electric charge is the same. Why so odd a multiple? Yet there must be a reason. It is just that all the theories I have seen that were designed to explain the matter were so obviously wrong."
"Ah," replied St. Peter, "here then, in the language of twentieth-century quantum physics, is the explanation of the proton/electron mass ratio." Whereupon, he handed a sheaf of paper to Pauli.
The physicist eagerly looked through the first page, took a quick look at the fourth, and handed them all back to St. Peter.
"Still wrong ..." he sighed.