Pi  M N E M O N I C S
                           I


                                         Mnemonic Type: 

               The length of the n-th word = the n-th digit of Pi


Imagine a person with a gift of ridicule [He might say] First
that a negative quantity has no logarithm; secondly that a
negative quantity has no square root; thirdly that the first
non-existent is to the second as the circumference of a circle
is to the diameter. 

-- Augustus de Morgan