Atoms and Primes

 Beginning of Edward Scheinerman's new book, "The Mathematics Lover's Companion":

"The physicist Richard Feynman believed that if humanity were to be faced with the loss of all scientific knowledge but was able to pass on just one sentence about science to this postapocalyptic world, that sentence should describe how matter is composed of atoms. In that spirit, if we could pass on only one bit of mathematics to the next generation, it should be the solution to the problem: How many prime numbers are there?"

[...he goes on to describe some of the proofs for the infinity of primes, before embarking on a wide array of other topics throughout the book.]