Big Numbers

From The Best Creative Nonfiction Vol 1 on the number seven:

Seven is the largest prime number between zero and ten. Out of all the numbers, the very largest primes are still unknown. Still, every year, the very largest prime is larger. Euclid proved the number of primes to be infinite, but the infinity of primes may be slightly smaller than the infinity of the rest of the numbers. It is here, exactly at this point, that my ability to comprehend begins to fail.